Special selection tool that almost nobody have any use for except me
If you get many Folders/files with similar name that have version nr in the name that function will select all old duplicates without the latest. so you can delete them..
Eg
MyApp_v4.5.5000
MyApp_v4.5.5001
MyApp_v4.5.5002
MyApp2_v3.5.3001
MyApp2_v3.5.3003
MyApp2_v3.5.3005
Then all except MyApp_v4.5.5002 and MyApp2_v3.5.3005 would be selected so you can delete them because they are older bases on version nr.
Useful if you are working with a system that generate lot of folders/files like that. Like Build and CI systems for software developers..