Timeline Swimlanes shouldn't show if field isn't populated for items in view

pmillikin

customize swimlanes - "group by" feature should not show swimlane/s if that field is empty on all rows in a given filter, or at least give the option to show or hide.

Alan Z.

Agree - thought I was missing something, but this should definitely be the case.

Workaround I've employed (untenable in most situations) is to remove the options from the drop down column itself temporarily.