Hi Matadem,

I think that function from 123D is now a slicer app in Fusion360 so you might look there.

Also some other possibilities in this reddit thread:
https://www.reddit.com/r/Fusion360/comments/q3y3pm/does_anyone_know_of_a_good_alternative_to_slicer/

You might look at the Blender add-in that is mentioned there.

- Michael