I think Max already has some pretty powerful selection sets and looping tools without any plugins.  For instance, in the sublevel of an epoly object, select an edge, click "loop", and you have your edge loop selection, click "ring", and you've selected all the edges in that band.  From there, right click in your viewport, and from the quad menu you can convert your selection to the vertexes or polygons in that selection set, and back again, etc.  Connecting the edges in a ring is just a matter of clicking "connect" and you have your new edge loop in that ring.  So basically, it's all there.  I'm not sure what something like Polyboost is going to improve on or do differently when it comes to that aspect, but I really like the sound of that polygon drawing tool, and some of the other things I saw on the website.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.