I request help to configure a keyboard key to run and quit a task. For example a desktop clock, calendar, cpu meter, etc (app, gadget, pgm etc,). It should function as follows :
key press-hold = app (e.g. clock) appears (executes a run command?)
key release = app (e.g. clock) disappears (executes a exit/quit command?)
In the clock example, I would like to simply press-hold a key and a custom desktop clock appears (program start) and then disappears (program quit) when I release the key. Defining many tasks in this manner would prevent the need for having multiple tasks running and eating cpu/ram when occasionally 'checking in' super-quickly on something is all that's required.