You can create a mennu, each pad would be one of your three options, and a fourth pad to allow you to exit the menu.
You can either open a procedure for each option or call a command like do myapp1, do myapp2, etc
Presumably each app is in its own directory. Therefore you would be better off by creating a procedure for each menu pad with code like this:
cd \applications\app1
do app1
In another procedure you would do:
cd \applications\app2
do app2
etc
Rafael Copquin
Treasurer - Microsoft Users Group of Argentina (MUG)
www.mug.org.ar