From the aMember admin control panel, GoTo Setup/Configurtion and open the WordPress module. After the WordPress module has been configured as covered in this step, Configure the WordPress Module the BuddyPress settings will be added at the bottom of the page as shown below.
To activate BuddyPress control check the box "Enable BuddyPress Groups Control" and save the page again. You will now see a drop down list where you can choose which groups you would like to control with aMember as shown in the image below.
After you have picked the groups to control be sure and click on "Save" to complete this step. You will now have to associate a membership product with a group in the final step,Setting up BuddyPress Group Control Within aMember's Protect Content Section.