Finally, code that works to orbit + creates a circ node.

ui/rocket.ks

@@ -2,26 +2,30 @@ function launchButtonPressed {
   run "launch"(
     targetApo:TEXT:ToNumber(),
     gravTurnStart:TEXT:ToNumber(),
-    initialPitch:TEXT:ToNumber()
+    gravPitch:TEXT:ToNumber(),
+    initialPitch:TEXT:ToNumber(),
+    minimumPitch:TEXT:ToNumber()
   ).
 }
 
 function nodeButtonPressed {
-  run "executenode".
+  run "execnode".
 }
 
-// Button panel
-CreateGUI().
-
+// Main UI.
 local interface is gui(200).
 set interface:X to 200.
-set interface:Y to 900.
+set interface:Y to 800.
 
 // Launch button
 local hBox is interface:AddHBox().
 hBox:AddLabel("Initial Pitch").
 local initialPitch is hBox:AddTextField("85").
 
+local hBox is interface:AddHBox().
+hBox:AddLabel("Minimum Pitch").
+local minimumPitch is hBox:AddTextField("40").
+
 local hBox is interface:AddHBox().
 hBox:AddLabel("Gravity Turn @").
 local gravTurnStart is hBox:AddTextField("8000").
@@ -38,7 +42,7 @@ local launchButton is interface:AddButton("Launch").
 set launchButton:onClick to launchButtonPressed@.
 
 local nodeButton is interface:AddButton("Execute Node").
-set launchButton:onClick to nodeButtonPressed@.
+set nodeButton:onClick to nodeButtonPressed@.
 
 interface:show().