Jamba has an option to disable follow or strobe follow, while drinking.

If you use normal follow, any slave independent movement will break follow.
And it will stay broken, until you start it up again.

There is a mapped key to enable and disable strobe follow, if you're using strobe.

Formations are pretty easy.
Create a mapped key, which sends something slightly different to each toon or slot.
One can get Q and another can get E, to spread out into a line.
You'll want to check the option to hold the hotkey, while the key is held.

You can even go with two Step formations.
Where on press 1, let's say Toons 2 and 3 receive Q, and then on press 2 only Toon 2 receives Q.
And then do the same, but Toons 4 and 5 receive E on the first press, and only one of them on the second press.
That will get you a line.

My signature has a decent section on mapped keys, editing them and creating them.
There are also good resources on isboxer.com, both video and written guides.
And then if you're not sure how to do something, you can go into the IRC on the ISBoxer site for live support.