How to extude several entities on the same sketch with different offset

Hi,

I have two rectangles, one inside the other. I want to extrude the inner rectangle with a given offset. I would also like to extrude the outer surface with different offset. I tried to do both these things at once, but I ended up not being able to do it. I also tried to do it in two sequential steps. However, when I do the first step, I am unable to use the same sketch.

How can I extude several entities on the same sketch with different offset at once?

I attach my .sldprt file.

I appreciate any help,

Best regards,

EDITED BY MODERATOR: Moved to Parts and Features space. Please post in an appropriate space when one exists.

Message was edited by: Jim Wilkinson

SolidworksParts And Features