@Edy17
You need what exactly ?

If that is about group or other components
you can make that : name al your different futur objects (or not)
Export as 3DS files format, reload it in Sketchup - explode them in Sketchup = you have different Components !
and they will named obj0, obj1, obj2 etc...
In case where some components are exactly the same (like a copy)
use this plugin from Thomthom who make "Instance" of one! ;)
Components comparaison: http://sketchucation.com/forums/viewtopic.php?t=30143

Have fun exporting!