You can set up new networks by going to the networks tab in the upper left hand column of the network admin. There is a button to create new networks and manage existing networks.
if you want to have your own feed then download BuddyPress Multi Network and put the file in your MU folder. “wp-content/mu-plugins/” If you do not already have a “mu-plugin” folder you can create one under “wp-content”
https://wordpress.org/plugins/bp-multi-network/
This will separate the feeds, activity, and metadata attache to each buddypress network installation. I have found that if you try to Repair Data (under tools -> buddy press), i.e., “Repair user “last activity” data” it does not work well with this type of setup and will wipe out the current network buddy press numbers making them wildly inaccurate. Other than the repair scrips not working, everything seems to do the job.
