Have a check box filter for users appearing in the user list , in user profile

currently plugins such as fusion inventory make a new user account...

This then appears in the user list for tickets and in other places.

Either:

1. have a set of "system" users that don't show up

2. have a separate "check flag" to exclude the user account from the users lists

this could also serve the purpose to hide staff that have left, whilst leaving any outstanding tickets/reports with missing information and stil lpreventing them from appearing in the user list, without haveing to play " make a special group"