You can actually delete them from "within AOO" at any of the Windows navigation screens.
File > New ... opens a Windows navigation screen. Find the file to be deleted > r-click on it > Delete.
The file will not be deleted if it is open in AOO.
You can use the same trick to rename a file by r-click > Rename.
If you want to copy a file name, r-click the file > Rename > ctrl/c to copy the highlighted name > click somewhere else to stop the rename process. You now have that file's name on the clipboard and can paste it elsewhere.
I hope this will help to you Thanks,