gtk:combo-box-text-insert-text (combo position text)

combo -- a gtk:combo-box-text widget
position -- an integer with an index to insert text
text -- a string with the text

Inserts text at the given position in the list of strings stored in the combo box. If position is negative then the text is appended.

This is the same as calling the gtk:combo-box-text-insert function with a nil ID string.