diff --git a/code/studio/src/plugins/gui_editor/expressions/abs.xml b/code/studio/src/plugins/gui_editor/expressions/abs.xml
new file mode 100644
index 000000000..5a5fe2c70
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/abs.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Mathematical</category>
+<name>abs</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/band.xml b/code/studio/src/plugins/gui_editor/expressions/band.xml
new file mode 100644
index 000000000..1ce1534ec
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/band.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>band</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/bnot.xml b/code/studio/src/plugins/gui_editor/expressions/bnot.xml
new file mode 100644
index 000000000..bde93f6e7
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/bnot.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Bits</category>
+<name>bnot</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/bor.xml b/code/studio/src/plugins/gui_editor/expressions/bor.xml
new file mode 100644
index 000000000..906678bc2
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/bor.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>bor</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/bxor.xml b/code/studio/src/plugins/gui_editor/expressions/bxor.xml
new file mode 100644
index 000000000..2bfedb167
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/bxor.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>bxor</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/dbcount.xml b/code/studio/src/plugins/gui_editor/expressions/dbcount.xml
new file mode 100644
index 000000000..df8e0aac6
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/dbcount.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Database</category>
+<name>dbcount</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/depends.xml b/code/studio/src/plugins/gui_editor/expressions/depends.xml
new file mode 100644
index 000000000..225d48dd6
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/depends.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Logical</category>
+<name>depends</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/extSign11To64.xml b/code/studio/src/plugins/gui_editor/expressions/extSign11To64.xml
new file mode 100644
index 000000000..e227fc8cb
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/extSign11To64.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Bits</category>
+<name>extSign11To64</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/extSign8To64.xml b/code/studio/src/plugins/gui_editor/expressions/extSign8To64.xml
new file mode 100644
index 000000000..f029c15fc
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/extSign8To64.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Bits</category>
+<name>extSign8To64</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getAlpha.xml b/code/studio/src/plugins/gui_editor/expressions/getAlpha.xml
new file mode 100644
index 000000000..acdc5e322
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getAlpha.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Color</category>
+<name>getAlpha</name>
+<variable>false</variable>
+<slots>
+<slot>Color</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getBlue.xml b/code/studio/src/plugins/gui_editor/expressions/getBlue.xml
new file mode 100644
index 000000000..be35a6c17
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getBlue.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Color</category>
+<name>getBlue</name>
+<variable>false</variable>
+<slots>
+<slot>Color</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getGreen.xml b/code/studio/src/plugins/gui_editor/expressions/getGreen.xml
new file mode 100644
index 000000000..da8e16bc4
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getGreen.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Color</category>
+<name>getGreen</name>
+<variable>false</variable>
+<slots>
+<slot>Color</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getRed.xml b/code/studio/src/plugins/gui_editor/expressions/getRed.xml
new file mode 100644
index 000000000..3a918857b
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getRed.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Color</category>
+<name>getRed</name>
+<variable>false</variable>
+<slots>
+<slot>Color</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getbit.xml b/code/studio/src/plugins/gui_editor/expressions/getbit.xml
new file mode 100644
index 000000000..6cc08e10b
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getbit.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>getbit</name>
+<variable>false</variable>
+<slots>
+<slot>Integer</slot>
+<slot>Bit</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/getprop.xml b/code/studio/src/plugins/gui_editor/expressions/getprop.xml
new file mode 100644
index 000000000..1098635aa
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/getprop.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Database</category>
+<name>getprop</name>
+<variable>false</variable>
+<slots>
+<slot>property</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/identity.xml b/code/studio/src/plugins/gui_editor/expressions/identity.xml
new file mode 100644
index 000000000..cd36facd6
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/identity.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Mathematical</category>
+<name>identity</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/ilinear.xml b/code/studio/src/plugins/gui_editor/expressions/ilinear.xml
new file mode 100644
index 000000000..9284b4e82
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/ilinear.xml
@@ -0,0 +1,10 @@
+<expression>
+<category>Mathematical</category>
+<name>ilinear</name>
+<variable>false</variable>
+<slots>
+<slot>Interpolant</slot>
+<slot>Start</slot>
+<slot>End</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/int.xml b/code/studio/src/plugins/gui_editor/expressions/int.xml
new file mode 100644
index 000000000..117225b6b
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/int.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Mathematical</category>
+<name>int</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/intToColor.xml b/code/studio/src/plugins/gui_editor/expressions/intToColor.xml
new file mode 100644
index 000000000..2993365d7
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/intToColor.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Color</category>
+<name>intToColor</name>
+<variable>false</variable>
+<slots>
+<slot>Integer</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/isFinalVersion.xml b/code/studio/src/plugins/gui_editor/expressions/isFinalVersion.xml
new file mode 100644
index 000000000..3c9ddc64c
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/isFinalVersion.xml
@@ -0,0 +1,5 @@
+<expression>
+<category>Nel</category>
+<name>isFinalVersion</name>
+<variable>false</variable>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/localize.xml b/code/studio/src/plugins/gui_editor/expressions/localize.xml
new file mode 100644
index 000000000..f8d3f0f4e
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/localize.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Localization</category>
+<name>localize</name>
+<variable>false</variable>
+<slots>
+<slot>String</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/makeRGB.xml b/code/studio/src/plugins/gui_editor/expressions/makeRGB.xml
new file mode 100644
index 000000000..a2cb2d352
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/makeRGB.xml
@@ -0,0 +1,11 @@
+<expression>
+<category>Color</category>
+<name>makeRGB</name>
+<variable>false</variable>
+<slots>
+<slot>R</slot>
+<slot>G</slot>
+<slot>B</slot>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/max.xml b/code/studio/src/plugins/gui_editor/expressions/max.xml
new file mode 100644
index 000000000..6592aecd7
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/max.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>max</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/min.xml b/code/studio/src/plugins/gui_editor/expressions/min.xml
new file mode 100644
index 000000000..753955ed9
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/min.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>min</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/mod.xml b/code/studio/src/plugins/gui_editor/expressions/mod.xml
new file mode 100644
index 000000000..d306f3371
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/mod.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>mod</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/oldvalue.xml b/code/studio/src/plugins/gui_editor/expressions/oldvalue.xml
new file mode 100644
index 000000000..299706c79
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/oldvalue.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Database</category>
+<name>oldvalue</name>
+<variable>false</variable>
+<slots>
+<slot>property</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/rand.xml b/code/studio/src/plugins/gui_editor/expressions/rand.xml
new file mode 100644
index 000000000..b284dc241
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/rand.xml
@@ -0,0 +1,5 @@
+<expression>
+<category>Mathematical</category>
+<name>rand</name>
+<variable>false</variable>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/sal.xml b/code/studio/src/plugins/gui_editor/expressions/sal.xml
new file mode 100644
index 000000000..3190f4420
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/sal.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>sal</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/sar.xml b/code/studio/src/plugins/gui_editor/expressions/sar.xml
new file mode 100644
index 000000000..75fcd57d7
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/sar.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>sar</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/secondsToTimeString.xml b/code/studio/src/plugins/gui_editor/expressions/secondsToTimeString.xml
new file mode 100644
index 000000000..fda7dd1c8
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/secondsToTimeString.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Time</category>
+<name>secondsToTimeString</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/secondsToTimeStringShort.xml b/code/studio/src/plugins/gui_editor/expressions/secondsToTimeStringShort.xml
new file mode 100644
index 000000000..042cf06de
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/secondsToTimeStringShort.xml
@@ -0,0 +1,8 @@
+<expression>
+<category>Time</category>
+<name>secondsToTimeStringShort</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/shl.xml b/code/studio/src/plugins/gui_editor/expressions/shl.xml
new file mode 100644
index 000000000..653a142a6
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/shl.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>shl</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/shr.xml b/code/studio/src/plugins/gui_editor/expressions/shr.xml
new file mode 100644
index 000000000..435816f6e
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/shr.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>Bits</category>
+<name>shr</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/str.xml b/code/studio/src/plugins/gui_editor/expressions/str.xml
new file mode 100644
index 000000000..c98ae89eb
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/str.xml
@@ -0,0 +1,9 @@
+<expression>
+<category>String</category>
+<name>str</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>
diff --git a/code/studio/src/plugins/gui_editor/expressions/switch.xml b/code/studio/src/plugins/gui_editor/expressions/switch.xml
new file mode 100644
index 000000000..19f94f9d3
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/expressions/switch.xml
@@ -0,0 +1,10 @@
+<expression>
+<category>Logical</category>
+<name>switch</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+<slot>C</slot>
+</slots>
+</expression>