Hole Wizard, Sketch Blocks and Library features

So I have a piece of sheetmetal that I want to place holes on for motherboard standoffs. I use the same pattern of holes and/or (sketchpoints to define the holes in hole wizard).

I want to know the best way to set up a sketch of the hole centers with sketch points, then use hole wizard to define them, and make that a library feature so that I can just drag and drop the hole pattern onto whatever I'm working on.

SolidworksDrawings And Detailing