Command to re-size control point area to split surface

Rhino Rhino for Windows
1

Please can someone tell me what command I need to run to reduce the control point area to the size of this smaller surface I’ve split? So the outer edge of the control point map resizes to the selected yellow surface outline.

Reduce_Control_Point_Area
Reduce_Control_Point_Area1325×759 111 KB

2

I’ve found the command for anyone else with the same issue - ShrinkTrimmedSrf