Hi wim, there is a script that can help with that, you can find it here:

AssignName - set the name of an object from a list of existing named objects:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3830.4

AssignPresetName - set the name of an object from a fixed preset list of names in a text file:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3830.8

In the future I want to make that possible from within the scene browser itself, but for now the AssignName plug-in should help.

- Michael