Having read-more open on the Activity feed in Buddypress

hey. I"m just getting into buddypress customization. I wrote a post, no image; and it went for a certain number of characters before giving a (read more) option. When I did that, it opened another page. There wasn't an easy way to get back to the Activity feed (obviously, going back in the browser works, but I wanted something for the users)

What can be done to extend the characters before a (read more) is invoked on the main Activity page, and can the (read more) just open or close it on the main Activity page instead of going to another refresh?