Delete file on contextual menu

Hello.

Not sure if thread is in good section...

Until yesterday, I was using OpenELEC beta.
With my remote, a long press on a button was giving a "pop up" (conextual) menu with options like "delete" to delete a file.

Using LibrELEC 7.90 alpha, the pop-up is present but not the "delete" option in the menu !

So is it a removed feature, a problem with Kodi 17 b1 ?

If not a problem, then I make a request to add this

Thanks

Ok, so need to find it in settings.

EDIT : have looked all over Kodi 17 and can't find the option.

The "File list" option seems to have disappeared

EDIT 2 : found !

Now, in "Media" settings, then "General".