Reply To: Use a custom “bbpress/loop-topic-list.php” for one forum only?

I’m not sure how technical you are, but you can get your theme to hold a bbpress template which you can modify eg if you want to amend loop-single-reply.php you would find
wp-content/plugins/bbpress/templates/default/bbpress/loop-single-reply.php

transfer this to your pc and edit

and save

create a directory on your theme called ‘bbpress’
ie wp-content/themes/%your-theme-name%/bbpress

where %your-theme-name% is the name of your theme

Then transfer the file you saved above and put in in the directory called bbpress that you created above, so you end up with
wp-content/themes/%your-theme-name%/bbpress/loop-single-reply.php

bbPress will now use this template instead of the original