I'd really like to see a workspace manager, I generally work with multiple EmEditor windows, and many times now I've completely lost workspace state due to closing windows -- possibly with [x], or other methods and only the last window gets presented any option to close and save workspace state.

A way to manage workspaces and save the current windows/state without having to exit completely from all EmEditor instances.

As well as the ability to choose which workspaces you'd like to load at start-up or at any other time -- ( which I believe is similiar to the OP's original request ).