Splinter allows for an "unlimited" "type" of different "stacks". They are called spli-stacks and and are the natural evolution of stacking, removing the restrictions that must come with "standard" docks.
There are four spli-stacks in this image. A 22 splicon social media stack, 4 splicon ms office stack, 3 splicon browser stack, and a 5 splicon user folder stack. See how the animate in the video below the image.
Elegant Edition Splinter (every page has multiple spli-stacks)