I think I understand what you are asking. You want to take the results, the RSquare and incorporate it back into the data table that was used to run the analyses from. What I don't understand, is what you envision is where in the data table you want the data to reside..
You could save all of the various RSquares as table variables, or you could add columns and place the values into the columns. I guess, what might be helpful, is if you could provide some insight by telling more about what is the purpose of putting the RSquares back into the data table.
Jim