What it supports is not unique in that sense. All 29 of my mesh atty's (3 different brands, 4 different models) can do single or dual mesh, single or dual coils in them. The mesh clamping systems used in mesh RDA's/RTA's might possibly make that possible in many other mesh atty's as well.
A dual mesh build also has its uses, can help fine tune the liquids you vape. This picture is of a Vandy Vape V2 with their Dual M mesh build on it. But you can easily make your own dual mesh builds by modifying stock mesh strips offered for mesh addy's (Wotofo, OFRF nexMesh, etc), or from Vandy Vape Spools of different spec meshes, or from sheets of mesh from other sources.
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