That is a theme issue, so you should contact theme authors.
An alternative would be to use a WP theme and install the BP Template Pack plugin then go through Appearance > BP compatibility process. We’ve “template-packed” a number of WP themes, check out if that WP theme is listed near end of https://codex.buddypress.org/theme-development/wordpress-to-buddypress-theme/
> This is a design job I’m doing for a client
It may be design but you are going to need to know a fair degree about how BP works and WP, BP doesn’t automatically add a dropdown menu so your theme must be adding it, and you should be able to tell what is happening from examining the template files and the appearance > menu configuration
Thank you very much. I’m in my first year at The Art Institute so getting into the depths of PHP in wordpress is new to me, PHP is new to me. Thank you for your help.
Any suggestions on how to get more acquainted with the back end of WordPress?
To be honest; trial & error, play around , a lot, with a test install on your local machine, but also do read through the extensive WP codex pages for beginners especially the theming sections.