Trimming IPTV list

[Soapm]

Is there an easier way of trimming an IPTV list? I think this last time I chose three categories but I still end up with hundreds of channels when I really need only a few. I bring up the list where you can uncheck the boxes but there's no save function that I can see so the channels remain active? Is there an easy way to pick 5 or 6 channels?

[mvallevand]

Clicking the top box in a selection list toggles all of them off/on.

Martin

[Soapm]

How do you make the change stay? I can unselect them all but when I go back they're all checked again.