Alsi in Model info > Staistics, you can "Purge all" (layers, styles, materials, components) in one step. Layers themselves are not too byte hungry but all the other three can boost your file size pretty easily if you don't pay attention.

or use section planes.

@nednarb said: being able to delete a surface then select something behind it, hit undo and still have my selection made Even better is to set shortcuts for "hide" and "unhide all" and hide the geometry in front, select the geometry behind and then unhide all again. I use this all the time and it's zero-risk as you're never actually deleting anything, just switching off it's visibility.

Hi folks. I dont see this behavior of "Follow me" as a bug. This is to be expected since, when "Follow me" goes from one segment to the next, it must rotate the profile as it goes. If the direction change imply a rotation around only one axis, the profile will be reoriented around only this axis. Good for now. If the direction change is done around two axis at the same time, like the ramp in a spiral staircase, a rotation around the third axis in unavoidable since all three axis must remains at 90° from each other. What would be nice to have in a future version of SU would be some kind of modifier key that would allow the user to tell the "Follow me" tool to consider only one axis for rotation when doing the pull along the path. Just ideas. Jean (Johnny) Lemire from Richelieu, Quebec, Canada.