Assigning Software Licences - Sites issue

With the introduction of Sites to the system it seems all assets have to be in a site to get a software licence assigned to them. Is that correct?

When I show list of assets with a particular software title on the ALL SITES selection at the top of the screen shows a nice list. However I can't allocate the licence to any of them as none of the assets are associated to a site.
At this stage I don't care WHERE the asset is, I just want to assign the licence to it.

So HOW do I do this quickly, I think the answer is going to be go and assign all your assets to sites - and if that is the case is there a quick way of getting all the assets that aren't assigned a site and assigning them to a catch all site so I can get on with the software management.

Thanks,
Andy