Referenced file in Outliner

Hi, i am very late to the party, i ask for a feature to handle xref in the same way 3dsmax / autocad handles xref as external files that dont add to the file size of the master file, does the Eneroth extension was able to do this?

example: xref_doors.skp(25mb), xref_main_buildings.skp(125mb), master_file.skp(2mb) is this posible?