As requested by Martin Owens here: http://sourceforge.net/p/inkscape/mailman/message/34734828/ Currently, either possible by multi-difference extension or by duplicating topmost object and repeating, which can be annoying... Combining can easily be chained afterwards or before, if you want a combination. As it's destructive, it would be nice to leave that out of the 'multi' process and let the user decide. Possible to do the same for the remaining two-paths-only operations.