i was a heavy Rhino user for years, you have to pretty much throw everything you are used to doing in Rhino and put it in storage, even the. maybe the best way to describe the transistion is, "creo = creating datums, datums, datums, and more datums."
in essence that is what all modeling software does, but most do the creation on the fly and in the background. in rhino you may have to "move" the c-plane to draw a curve somewhere or use a surface, then you can move it using osnaps without needing the c-plane in that location anymore. then you have 3pt Orient, etc. to copy/move ....... here you have to "create" the c-plane/datum plane then draw the curve. If you want to move the curve, you move the datums.
it's because of this that Rhino has limited "history" and why they created Grasshopper until they rework the guts.I haven't used Rhino since beta 5 went gold. From what I understood at that time is they didn't want to follow the "feature tree" paradigm so Grasshopper was a seed for future integration. I don't think David or McNeel had any idea what Grasshopper has become.
Anyway, I'll get off my "rhino".
tl;dr
no easy way, move the datum the sketch is on
!! So I can't just drag a line that I've drawn from anywhere to snap to a point on another object that I've drawn? How do I find out what datum plane the sketch is on? Did you see the reference pic that I provided?
