Easily setting numerical values for geometry, like Lightwave's Modeler does I'm moving from Lightwave to Blender, and there's something that's super easy in Modeler that I can't work out how to do in Blender.
In Modeler if I have geometry selected and hit i I get the info panel which gives me position and other info on any / all of the selected geometry.

This is particularly useful if I want to set a bunch of verts to a particular position, on any or all of the axes—I can just type in a position (or weight value) and apply it to all selected vertices. Is there any way of seeing or editing vertex info directly  in Blender?

Even without the info panel it's a one-step operation to assign a value to any selected geometry, I hit v and get a set value dialog. This works for verts, edges and faces. Does this exist for Blender?
You can edit the positions of single vertices using the properties panel which can be toggled by pressing [N], then under the item tab you can see the XYZ coordinates. You cannot see each verts position individually but you can change them all at once.
Another useful tip is that if you want to  bring a vert to the same plane of another you can select the verts you want to move, and then the one on the X Y or Z you want it to be, and set the transform pivot to active. Then just press [S] to scale the [X], [Y], or [Z] button that correlates and then 0.
(Will add example gifs soon)