flow [c] app [args]
Starts the GUI processing engine. If app is required and is the Workflow application in the $env:PSEC_V4_FLOWS folder.
The start-gui-v4.ps1 (a lightweight start-psec-v4.ps1 replacement) is used to drive the window and by default runs in a hidden window unless the c option above is included.
This implements the PSEC - Restart Facility facility (triggered by typing // when the window has focus).
Using the X in the top right corner to close the application or typing ./ will prevent restarting the application.
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