Create a new stencil from a master shape in Visio 2013 Professional

Question

I am trying so hard to make a stencil in Visio 2013 Professional based off of one of the master stencils. The Microsoft website says this is possible but I'm starting to have serious doubts.

Create, Save, and Share Custom Stencils
Edit a Master Shape

I am making UML diagrams. What I want is a dashed line ala the "Interface Realization" or "Dependency" association found in the UML Class category, but I want it without the arrowhead. This is what I have been doing to try and make that happen:

1. Right click on "Interface Realization" -> Add to MyShapes -> Add to New Stencil -> Save 'Stencil1'
2. Left click on More Shapes -> MyShapes -> 'Stencil1'
3. Right click on 'Stencil1' (now open in the Shapes browser) -> Edit Stencil
4. Right click on "Interface Realization" -> Edit Master -> Edit Master Shape
5. Right click on the shape in the new window -> Format Shape
6. Left click on Line -> End Arrow Type -> #00: None

WOOPS! SORRY SIR LOOKS LIKE YOU CANT DO THAT! BACK TO #14: Open Ended Arrow FOR YOU!!

This is so, incredibly, frustrating. What do I do in order to get Visio to save my changes?

Answer 1

The shape is designed to prevent easily changing this property, so you need to brute-force your way through this. Open up the master's shapesheet and change the LineFormat/EndArrow cell formula to 0 (or GUARD(0) if you prefer).