It is probably easiest to just go with a) no follow occurs automatically... and to then hit the follow hotkey when you want it. And do a movement key for the slaves only, to break follow.




However, we can easily do a toggle between the two with IS Boxer,.

What I'd do, is make a new mapped key.
In Character Sets, click on each Slot, changing the automatic action when you switch windows to the new mapped key.
IE, it is currently set to Follow/JambaMaster, change that to the new one.

The new one will not need a hotkey.
It will have one step.
There will be two actions on the step.
Right click on Actions, in the right pane.
Choose... Key Map Actions >>> Do Mapped Key Action
Set it to JambaMaster (target: Current Window).
Then the same thing, but set the second action to Follow/JambaMaster.

So now, on a switch it attempts both mapped keys, instead of one or the other.
Almost done.

Create a new mapped key.
Give it a hotkey for toggling between Follow on Switch and Don't Follow on Switch.
Give it two steps, there will be one by default, you can right click on Steps to add another.
We will be using.... Keymap Actions >> Do Mapped Key State Action.

Step 1:
Do Mapped Key State Action twice.
The first one will enable JambaMaster.
The second one will disable Follow/JambaMaster.
I'd probably give it a Pop Up Text message, but that is optional.

Step 2:
Do Mapped Key State Action twice.
The first one will disable JambaMaster.
The second one will enable Follow/JambaMaster.
Again give it the Pop Up Text message if you want.

If you want this to apply to all of your teams, just change the automatic action on character switch to the new mapped key for each team.