Bound Path

Bound Path Command - Create a single outline shape from multiple 2D shapes

Extract the py and pyc file and put them in the User Scripts lxserv folder, restart modo.

Select the layers you want to make the shape from and enter the command "bound.path" it will create a new layer with the converted shape.

Some points,

will work on multiple mesh layers(you just need to have them selected)

Tool will only work if all shapes our facing the Y axis, any verts closer than 1mm will be merged.

All 2d shapes must be flat and align with each other