Does it do that for all targets or just those training dummy things? Also does it give you any errors?

All targets. And no errors.

I love Aloft!

However, either it isn't yet included or I am just too stupid to find it... but is it possible to show wheter my target / focus target is already in combat or not?

It would be very helpful for any rogue not to try sapping a target which is already in combat.

As for now, it's always me guessing and hoping for a successful sap.

Ability to insert a newline into a tag?
 

I was wondering if there was a way to insert a newline (\n) into a tag to cause it to take up two lines. I have tried /n and /0, but those are taken literally as part of the tag.

Necro! :P Oh sorry, don't know what else to say.