in LMTools, go to the last tab where you see the FlexLM manager info (for lmgrad, whatever etc paths).. Click on the box with the name of the FlexLM configuration, and just start typing a new one. When you press enter, you will have 3 blank spaces below to fill.. this is where you fill in your license paths for Shake, etc etc. Then, you can pull down the first box again to see the other licenses.
Sean