How to attack a creature? (slimetraining)

[Singularity]

I managed to find the correct slime to attack, using the position of the mother slime for slime training. However, I could not find the function which allows me to attack it, is this feature missing?

Here is what I have so far:

2647

[Crown Royal]

I think there is a way, somehow.. But I tried the Self.OpenDoor(POSX, POSY, POSZ) "Obviously because It works with a right click, just like attacking, but fail. Maybe someone has an idea? Ill tag a few people who know a bit more than me..
DarkstaR Messed Around Spectrus Syntax

[nevalopo]

It is not possible because there is no command to attack a creature by scipt. Slime training and attack pk back has the same problem.