I'm wondering if it would be hard to get M-. to be able to look in packages other than the current package.

The problem I am trying to solve is that I really like to use M-. by entering in the function names in order to hop around within the code. The is all fine and well as I work in the main package that uses all the others, but once I hop over to one of the used packages I can't M-. at will without switching packages.

I'm willing to do the work if it's easy to medium, just asking you slime guru's as to complexity.