Hello Paul, I trust you are doing well today!
Merging personal and mentions will require a lot of custom coding.
I found similar requests already existed in the BuddyPress forums:
https://buddypress.org/support/topic/combine-personal-favorites-and-mentions-on-one-walli/
I am quoting the developer answer here:
Ok… there are few things you need to look at to achieve this:
You should create a new theme where you are going to implement your reworked profile / activity sub-nav menu. I suggest deriving this from the bp-default theme: https://codex.buddypress.org/extending-buddypress/building-a-buddypress-child-theme/
In the default theme, the activity sub-nav menu is created by a call to bp_get_options_nav() in /members/single/activity.php. It’s this call that you’ll either want to replace with your custom version (or apply filters / action hooks to get your desired result).
You should also take a look at how the activity stream is built – it’s quite easy to create your own activity loop that will return all the items for a given user merged into a single page (rather than the separate tabs): https://codex.buddypress.org/developer-docs/custom-buddypress-loops/the-activity-stream-loop/
Also check this answer:
https://buddypress.org/support/topic/mentions-show-up-on-personal-activity-streams-like-they-do-here-on-bp-org/
I hope this will help!
Cheers,
Nastia
