Create a new category of schedules called Parameter picklist.
These would allow you to pick a project parameter and create a list of preset values for that parameter, to essentially create a pick-list of values for the drop-down menu.
It would be incredibly handy for managing things sheet and view organisation, Titleblock entries, etc. No doubt lots of other uses too where you want people to use certain values for a parameter.
Bonus points for an option to lock parameters to just these values.
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