Trimming multiple objects in one swoop?

I have corel 11 draw and need to trim all objects from all the other objects, thus creating no overlaps. Currently, I pick multiple objects and trim from one or more objects, which works, but takes a long time. There can be hundreds of objects to trim, and the order is important I have found. I tried selecting all objects and trimming them from themselves, but that didn't work. Any ideas?

[Alex]

Select all your objects and choose Arrange>Shaping>Simplify command in the menu.