At the inventory, users ask for support for
* transferring resources from one galaxy to another
* managing "foreign" resources they obtain somehow
The first one is quite simple: move the currently displayed list of resources from the current galaxy to a galaxy selected at a dropdown in a dialog.
The second one could perhaps be that the "create entry"-dialog supported (Galaxy)Name and looked up at Galaxy rather than the currently selected galaxy but added to the latter.
Both of these are quite simple I believe and could be done quite soon.