First time users: How to delete unwanted sources

First time users often have trouble specifying content sources.

Usually, once they’ve figured it out, they will want to edit the sources they have experimented with.

Therefore, it would be great if there were an immediately obvious way displayed in File Manager for editing the sources they have created.

After much reading, I found that pressing C on a keyboard brings up a Context Menu that lets you delete entries. Could not a Delete option be added to the File Manager default menu?

This is a function of Kodi therefore, you should request the feature in their forum. http://forum.kodi.tv

https://osmc.tv/help/wiki/kodi-osmc

a good read for future request for OSMC