You can export individual groups from a profile by selecting the group you want to export and clicking the disk icon next to the "New Group" and "Delete" buttons.
Then switch to your own profile and import the exported group in the same way.
If this is a popup then you'll need to link your on-table group to it by selecting the on-table group and adding the popup to the Assign Popups section.
The
Tutorial: Managing HUD Groups refers to PT3, but the general process is the same.