With BuddyPress Auto Friendship pro version 1.1+, you can connect 2 users manually from admin dashboard. This guide assumes that You have either BuddyPress or BuddyBoss platform enabled and the Friendship(or Follow component) enabled.

In Order to access the tools section, Please visit Dashboard->Tools->Auto Friendship Pro Tools as shown below

You will find the option to connect 2 users as shown below.

The action drop down will depend on which components are enabled. If you have both BuddyPress/BuddyBoss friendship and follow feature enabled, You will see the actions as shown below:-

Here is a video showing the tool in action.