re: about "enable curve frame". What is it and how do you do it?
In the Properties dialog for Curve, on the Curve page, checkmark "Show Frame".
In Selection Info, check "Show Frame" in the Curve section.
As you draw your curve, it places a polyline between the points.
As stated in Help:
Show Frame: If checked, a polyline frame will be displayed
connecting the curve's control points. This provides visual
feedback about how the curve is drawn.
Designer, Deluxe, (Professional, Expert, Basic), Platinum
Windows 10 Pro (1903), 64-bit