This plugin enables you to have multiple sidebars for Buddypress. Create new sidebars that are unique to each page.
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Activate the plugin through the 'Plugins' menu in WordPress
Note: This plugin is for extending the functionality of Buddypress. Buddypress must be installed.
Install the plugin
From the WordPress dashboard navigate to the plugin settings via the Buddypress sidebar link/icon. Then click on BP Sidebar.
Use the default sidebars or enter a comma separated list of your own.
Chose the option 'Display below the default Buddypress Sidebar widget' to show your sidebars under instead of above the default 'Buddypress Sidebar Widget'.
You can create a page in WordPress and then create a new 'BP Sidebar' with the same name. This will enable you to have a unique sidebar on that one page.