Info on shared

I too, would like info on shared ownership.

At the Sands of Kahana there are some units that are owned by several people---shared ownership. Each owns a number of months per year of a specific unit.
As a timeshare owner I have floating weeks, and floating units each time I go. The views rotate between ocean front, ocean view, and garden view.
I haven't seen any shared ownership units for sale-don't know where to find them or what the cost would be. j