See details on UIIN-2590, which replaces the 3 dots with an alert message for the user. This story would add an info icon or otherwise make it easier for an admin to assign the parallel central tenant permission if a member user needs that central tenant permission in addition to the member tenant permission

Notes from comment on UIIN-2590:
When adding permission in member tenant for instances (and other permissions?)
Show pop-up (after save and close permission, or save and close user?)
If user should have same permission in consortium tenant, then include permission automatically, or tell them to switch to consortium tenant and add?
Or include an info icon in the add permissions area?