Checking - thanks. @Tom_P - this looks incorrect to me; at least, it does not corresond to Rhino for Windows behavior. I assume it is locked out because it is copied from default Rendered which also does not let you change this on either platform, but once copied, it ought to let you play. I guess, for now, (obviously) start with Shaded… RH-69505 Display modes- copy of rendered is not fully editable