How do you Duplicate a Level in 4.10? It used to be there in 4.8. Ctrl+W doesn't seem to work in 4.10 when used to duplicate a Level. Is it supposed to have changed?

Right clicking on a Level map doesn’t show up any option for Duplicating it in 4.10. CTRL+W doesn’t work either. The option is visible and usable in 4.8. While there may be a work around (Copy the Level to another folder, rename it there and move it back to where it belongs).

Is there a specific reason why this feature has been taken out form 4.10?