Follow only comes in one flavor, there is no variable distance. Also, the only way to terminate follow is by moving to physically break it {slave moving a step, interacting with target, melee attacks or some channeled spells, or the main moving out of follow distance}, there is no "stay here"-style command in the game. All that's available is the command to follow. Toggling off the follow in addons like Jamba is nothing more than the addon not reissuing the follow command.

The Jamba site has been down for about a week, but his Curseforge is still working

http://wow.curseforge.com/addons/jamba/pages/main/
http://wow.curseforge.com/addons/jam...lash-commands/

I have a sticky thread here for some documentation from a user perspective

http://www.dual-boxing.com/threads/2...etting-Started

And Jafula always puts up a new sticky thread here for the current version on Jamba

http://www.dual-boxing.com/threads/4...release-thread