vertex slide within face I recently discovered vertex slide and edge slide which are very useful. Now I'm in a similar situation, but I want to move a vertex such that it stays within the plane of a face. Is there a similar way to do this?

(What I am trying to do is modelling the Szilassi polyhedron, where you could see the usefulness of such a tool.)
You can move a vertex along the normal of the associated face. This doesn't ensure that the face was planar in the first place.


Switch to Normal orientation mode.
Select a Face in face mode.
Scale its Z normal to 0 in face mode. SZZ0


At this point nothing should have changed. If anything changed your face was not planar to begin with.


Make sure all vertices of the face only belong to a single face by ripping them. V
Move them along the face normal. G&#8679; ShiftZZ