Pretty much all of the combinations of mouse clicks and drags are already used in Rhino. What you are asking for is not an additional feature. You are asking for a change (holding down the wheel button already does something in Rhino).
Pretty much all of the combinations of mouse clicks and drags are already used in Rhino. What you are asking for is not an additional feature. You are asking for a change (holding down the wheel button already does something in Rhino).