Toggleable description popups on ticket fields for instructing agents.

I am interested in having description popups for ticket fields visible for agents.

This would help when agents are using ticket fields, particularly custom ones.  It would provide some information in the interface for how ticket fields should be used and maintained.

There should also be a toggle in the settings to turn this on and off.  Perhaps one toggle for standard fields, and another for custom fields.  I imagine experienced agents would leave the popups for standard fields turned off, but leave the one for custom fields turned on during implementation, change, and onboarding.