Oracle Forms - Insert text at current insertion point

[lewisp]

Is it possible in forms 4.5 and/or 6i to programatically insert text into a text item at the current cursor position?

I want to allow a user to move the text cursor to any point in a string of text contained in a text item and call a pick-list. The user can then select an item from the list and copy his choice into the text item at the point the cursor is currently sitting.