Reversing unit animation

[J4style]

Hello everyone!
I would like to know if there was a way that i can reverse a units animation through GUI.
Thanks

 

[chobibo]

Try setting it's animation speed to a negative value. [Source]

 

[J4style]

Try setting it's animation speed to a negative value. [Source]

I have tried this, it just causes the units animation to just freeze.