Crisalix offers a very precise tool that can be used to fine-tune any face procedure called Refinement Lines. 

Refinement Lines can be found together with a specific procedure in the Procedures menu or as a standalone tool in the Tools menu,on the right-hand side of the simulator screen.

1.  Once finished your simulation with the specific face procedure tool, select Show refinement lines to visualize the specific lines related to the procedure.
2.  If needed, select one of the predefined views visualize the lines according to your needs.
3.  The lines are made of different segments. Click on the specific line to visualize the segments it is made of. 
4. Change the length of the segment by moving the slider under Line selection length. When you modify the length of the line, it also affects the range of the area or movement covered. 
5. Drag or move the mouse to move the selected line or lines until you obtain the desired result. 
6. Select Mirror if you want to have the same line activated on the opposite side.
7. Select Undo or Redo at the bottom of the menu if needed.
8. You can go back to the default Refinement lines selecting “Reset lines”