@hajhaj there are different ways to implement a new layout for all BuddyPress pages. Check out how it was done for the WP default themes at https://codex.buddypress.org/themes/bp-theme-compatibility-and-the-wordpress-default-themes/
I did everything but nothing happened. I use powermag theme. it have buddypress sidebar but I also try with default sidebar. nothing happens.
my theme page.php desc.:
This is the template that displays all pages by default.
Please note that this is the WordPress construct of pages
and that other ‘pages’ on your WordPress site will use a
different template.
@hajhaj Unfortunately, we have no access to the premium theme. Please post in theme author’s site for assistance as the person would most likely know easily how to make the layout change.