Generally pick one toon to be the master.
Enter every toon's name on the master toon.

And then on each slave (one in your case), enter the master's name.
And set the master as the master for the team.

Then go onto the main, and "push" the settings to the team.
Each member should then accept any settings from the master.
Which will include all of the other slaves.

Once you have that done, you can make a change on any toon, and push it to all others.