Hello Everyone, 

I have a similar question but different model that might need other techniques.

I have seen several videos and Matt Neuman's comment that referancing to planes nor points will not work.

However, in my situation I do not have any planar surface other then referance Front Plane, thus, I guess thats why I cannot save it as a library feature.

Any ideas would be greatly appreciated, otherwise I will have some fun with creating approximately 50-100  cut feature like this manually.. 

I attach the SW2020 file for you to see..