CopyPaste 2.5 Shareware $15! ©Peter Hoerster, Besselweg 243, 48149 Münster, Germany
1) Keep commandkey pressed
2) type 'C', 'X' or 'V', 
3) then a number between 1 and 9 to use 9 clipboards
4) finally release commandkey 
Menus work as well!