When using the E57 writer, I've been unable to assign specific names to the scans in the point cloud file. In my case I only have three names, and those are in attributes waiting for a place to use them.
It seems the writer uses the file's basename for the first scan, and then appends _001, _002, etc. to any others.
I'm hoping there's more flexibility and that some smart person will tell me where to find it.
TIA