How to enable LONG PRESS in OSMC/OpenElec/LibreElec?

I’m configuring and addon that records IPTV. The addon creates FLV videos but without the context menu, I can’t delete the videos that the addon records. Someone can say me how to enable the long press in OSMC or OpenElec or LibreElec? I need that pressing “OK” button in a file, a video file for example, I need to appear context menu to delete that file. I need to work with the remote of TV, I know that with the app KORE in android, I can use context menu but it has to be with the remote of TV.

Someone can help me?