Max Śnieżek

My oversight. Thank You very much for Your help, now working just fine

Okay I got it. So changed the code tried both solutions and I got errors shown below. I tried to google that error and it seems that i try to work with instance that has type None or doesn't exist ?

Thanks for Yur reply. I see my mistake with ( == ) changed it to ( = ) still doesn't work. What i want to do is to read out value of parameter in this case “spine_squat_front” and change it (reset) to value of 0. The goal is to write scripts that can reset many(specific) parameters at once.

Max