Originally posted by Falott vladimirjp thx for the boolean hint. sounds logic and tried that a minute before. it doesn´t work. if the boolean attribute is once applied (rotateY) the Y-axis is locked with 1 (which might mean boolean incoming connection) but it cant be rotated anymore. X,Z no problem but Y is fixed. i think its because u are maybe applying as an expression not a control attribute. if u do it as a control attr, it will change color, but it will not be locked. works for me fine when i need to use it.