Hey guys, how would you change the kind of holding the weapon from this "invisible" flamethrower to the animation of forcepush??

Change the animation references in that unit. (look at the "jedi_creation.doc" in the modtool assets, for info on combo editing)
If I'm right about the location to the documentations.

Is the topic in the faq "jedi combo creation guide " (or something like) the same?

Kinda

I looked at the stock forcepush odf and found something interesting.
Try to add this lines to your invisible flamethrower odf.

AnimationBank = "melee"
//Use the lightsabre force-push animation
FireAnim = "2"
//FirePointName = "hp_fire"

I am not sure if it works, though.

I´ll try if I can working at the other pc. Thank you!

No problem, just tell me if it works.

OFF-TOPIC:

hehe, you'r avatar is really Darth Duck-y.

If I try this, game crashes

what dose the error log say??

The only Message Severity 3 was something with can´t find HUD element.
But I´ll try now another way