Diagnosis
Changing the text or adding the possible entries button to theinput/output element would have caused a collision with the adjacentscreen element on the right.

System Response
The text or possible entries button attribute remains unchanged.

Procedure
Move the input/output element to the left to allow for the increasedlength, or widen the screen itself.
To enlarge the screen, either increase the nmber of maintenance columnsin the screen attributes, or drag and drop the right-hand edge of thescreen to the required width. You may first have to enlarge the windowof the layout editor first.