There is a COMBOBOX control (TYPE == 11).
 
Syntax:
Window.AddControl(id, 11, X, Y, WIDTH, HEIGHT, "Item_1|Item_2|...");
Sample:
Window.AddControl(10,11,0,82,80,29,"Tips 1|Tips 2");
Description:
A combo box is a unique type of control, defined by the COMBOBOX line, that combines much of the functionality of a list box and an edit control.

X, Y, WIDTH, HEIGHT :- The dialog units. The horizontal base unit is equal to the average width, in pixels, of the characters in the system font; the vertical base unit is equal to the height, in pixels, of the font. Furthermore, each horizontal base unit is equal to 4 horizontal dialog units; each vertical base unit is equal to 8 vertical dialog units.

 
  GUI for script  
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