Importing messages from Live mail

I understand that when moving from WLM that only the account details are setup in emclient. Then follows a synch of all folders. Many users have masses of emails in folders that will be a huge download taking a lot of time and quota. It would be wonderful if all the folders stored on the computer in the WLM directory could be loaded thus remove this large overhead. Is this or will this be possible?

I am replying myself. I have located how to do this under File\Import.