%QS - Simultaneous Output of Multiple Screens

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# %QS - Simultaneous Output of Multiple Screens

`%QS`

With this command, you can display multiple screens simultaneously.

`%QS` causes the next screen I/O not to be executed. The corresponding output screen is kept internally until the following I/O, when it is displayed together with the next screen. Therefore `%QS` only makes sense if the second output screen is a window, that is, if it does not entirely overlay the first screen that was suppressed with `%QS`.

Example: You can suppress the output of a screen A with `%QS`; the next screen B is a window which partially overlays screen A (perhaps a help window for one of the fields on screen A); with the next screen I/O, the window B and the "underlying" screen A are displayed simultaneously.

A `%QS` command only applies to the subsequent screen.

Note
As `%QS` reduces the number of screen I/O operations, it also improves performance.