I only thought it was possible after remember in the past looking a map with one skill that used impale with diferente position.
Impale effect come from below, but this map used impale from bottom left to top right. In other words, the map maker changed the direction of this effect. I don't remember if it was a imported effect, but I doubt it was because I looked into triggers and it had Impale as effect used.
It's possible to change the pitch angle of the units. This can be done in Unit Editor, Art - Max Pitch Angle or Roll Angle. Then again, this is only possible in Editor mode. Not possible during in game mode.
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory