Changing a mold without it redrawing
As you edit a mold, the molded object and the mold are redrawn on screen every time you change it. This redraw may be slower than usual if the object is complicated. To speed up redraws you can 'detach' the mold from the object. The mold is redrawn after each edit but not the object.
To change the mold without it redrawing
1. Select the molded object (see Selecting objects).
2. Choose the Mold Tool.
3. Click the Detach Mold button on the Mold Tool Infobar.
4. Edit the mold as normal (see Reshaping envelope molds or Reshaping perspective molds).
5. Click the Detach Mold button again to redraw the molded object on the screen.