changing Buddypress labels in Studio theme sliding panel

This may be more of a generic question rather than one that just applies to the Studio theme.

I have created a bespoke language file to change labels and message (I am changing 'group' to 'exhibitors')

all labels and messages have changed except the sliding panel buddypress menu labels. I am not sure where/what I should update to make this change - particularly when I want to maintain these changes with updates to BP and/or the theme.

Can anyone advise please?