This is a addon script for 3dsmax that does a bunch of useful operations, depending on which sub-element level you are in, by using just one hotkey.  It can take the place of a Cut tool, a bridge edges/faces tool, a Connect edges/vertices tool, a Cap Hole tool, a Distance Connect across existing edges, and can even work on Splines, by creating spline segments between two points, all from just one simple hotkey command.  Man, this thing is a real time saver, and truly useful tool.  Now that I'm working more and more in Blender, I'd REALLY love to see something like this as an addon.  It would literally save us from having to recall as many as 5 or 6 hotkeys, and help speed up the modelling process.  Before I go requesting this in forums, or whatever, does anyone know if something like this already exists?  This would really be amazing to have in Blender, as hotkey memorization seems to be one of the bigger complaints among novice to intermediate users to begin with.  This would definitely help in that aspect.

Here's a link to the Max addon script so you can see what I mean:

http://www.scriptspot.com/3ds-max/scripts/uniconnector

Luxxeon posted it over in the Max forum, so I gave it a go, but I'm not using 3dsmax nearly as much these days unfortunately, so my first thought was PLEASE have something like this for Blender! lol.

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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.