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 