Is ist possible to add custom views to agenda which can be accessed via org-agenda-view-mode-dispatch?

Its very convenient to press just "v" and "l" to make agenda show completed tasks. It would be great to be able to filter the current view for special TODO keywords or tags the same way. Like pressing "v" and "n" to only show todos with NEXT keyword in the current agenda view.

I am fairly new to emacs.