Hello, i am working on project that consist of several files. 1.st main file is linked FBX file, to this main file i join xREF files. I have about 5 xref files, that consist of people, cars, vegetation, mobiliar ..., each in separate file, to reduce polygons in each file i use cproxy exporter, but when i link all xref files to my main file /FBX/ it runns so slow, sometimes it crashes. Am i doing something wrong? or how to work with big scenes , THX for reply and sorry for my english.