To open a toolbar...
BringForward
Bring curves forward in draw order.
BringToFront
Bring curves to the front in draw order.
ClearDrawOrder
Return curve draw order to the default.
SendBackward
Send curves backward in draw order.
SendToBack
Send curves to back of draw order.
Rhino for Mac © 2010-2017 Robert McNeel & Associates. 24-Oct-2017