Mudbox :: PTEX Vector Displacement Map Used As A Stencil Or Stamp?

Can a PTEX vector displacement map be used as a stencil or stamp? If not, what's the workflow for going from a PTEX sculpt to a vector displacement texture (e.g. TIFF) that can be used as a stencil / sculpt.
 
The problem I'm experiencing is that I sculpted a plane with PTEX and exported a PTEX vector displacement map, however, when I go to the Image Browser to attempt to use it as a stencil or stamp the PTEX file does not show up. The only files I can see in the browser are TIFF, PNG, etc. If I change the Output Options > Map Type to from PTEX to Texture I get an error: "At least on target model has been set up for PTEX. You must select PTEX format(*.ptx) for maps extracted using this target."