OSNAP: Normal to Surface

It would be very useful to have a snap such as “along line” to constrain a point to the normal of a surface in a specified point.
could one expert of scripting make a macro who works hidden. I can do that with python but i don’t know how to run a python script during an other command such as making a line.
thanks

Well, if you only need a line, there is Line>Normal… However, if you need to snap something else to a theoretical line normal to a surface at a point which you want to pick while inside another command, I don’t think that’s possible.

@pascal Perhaps one-shot Perpendicular from could allow picking a surface in addition to just a curve?

–Mitch

Yes, I meant to snap something else that just a line.
Yes, something similar to a Perpendicular from Surface

Yep, thanks, added: http://mcneel.myjetbrains.com/youtrack/issue/RH-29239

-Pascal

Thank you