what is the difference between copying and advanced copying? and is there a difference between moving and advanced copying
Move means completely transferring a file to another folder, with all its references updated accordingly. The original folder will no longer contain the file. Advanced Copy means copying the selected object along with all of its referenced files into the new folder (for example, when advanced-copying a material, all the textures it uses will also be collected and copied, regardless of where they are located). This will, of course, result in more files being copied. Copy means only copying exactly what you specify, without including any referenced files.