I think the tool you are looking for is actually called "Frame Generator," (as mentioned by 42! while I was typing this response...). You can use this tool to quickly model a frame made out of some sort of uniform profile, such as 1x1x.0625" rectangular tube.
What you have to do is create a sketch, or several sketches, that represent the centerlines of the frame members. You then save and insert this part into an assembly. Then, under Design Accelerators, you use the Frame Generator tool to create your frame by selecting the lines. You can then add "end treatments" that will help you make the members the right length - you can make them flush, add a mitered edge to corners, or other similar operations.
This video goes into a bit more detail, and shows an example of how FRC teams might use the tool.