Why do some entry screens allow you to mouse from one field to another without error, and some screens produce errors or don't allow navigation with the mouse at all?
IN-B mousing works
PO-A No mousing in header screen
AP-A Mousing produces error "access violation...00402DCF...'tp7runtime.exe........"
There doesn't seem to be any uniform practice in how the programs were made.
 
Just curious if some day all will work the same.

John is correct, we are working on it.  Unfortunately, it is something that has to be done program by program, there is no magic button we can push.  At the Symposium, we plan to release fully GUI versions of IN-A, IN-B, AP-A, AR-A and WO-A with PO-A and SO-A next on the list and more to follow.