Jamba Macro

Started to use Jamba 3 days ago and I've spent 6 hours on the macro section alone. Am I doing it wrong or is this feature just bad? I used to multibox with AHK and self written macro's alone. Jamba has some nice features and according to the online documentation, the macro stuff is really cool too, but i just cant get it to work.
So a basic macro in jamba would look like this:

/cast #enemy# #attack01#

and then i would change the variables because im using different toons:

// this one is for all toons
variable 'enemy' = [@target]

// and each toon has his own attack spell
mage variable 'attack01' = frostfire bolt
warlock variable 'attack01' = shadow bolt
etc...

I think this was the intended use of this. Anyone else has problems with it, or maybe different macro's that work?