Select Members of Group 7

Select the channels (and tracks) for everything assigned to group 7. There are 64 groups possible.

To Do: Investigate using groups to identify track stacks (both summing (AUX) and folder (VCA). Could go as far as assigning a group for reverb or delay sends, but that may simply be more easily accomplished using Sends on Faders.

Edit group membership in Logic Pro — Apple Support

You can add a channel strip to, or remove a channel strip from, single or multiple groups. You can also temporarily disable all group parameter links—applying a Group Clutch—to change the volume of an individual channel strip, for example.