Switching Programs When Switching Back and Forth

[SoloCDM <deedsmis ris net>]

The documentation is wonderful, but I'm not able to find anything when
I need it resulting from no search device included in the Help System.
Any suggestions?

I need to find the option related to switching program windows when
the cursor leaves the screen to another screen then returns.

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Signed,
Daniel D. Munden

P.'S. Detailed Documentation(s) and Sample(s) are more than welcome.