Source Filter?

On the HDHomeRun source that lists the channels, on the far right there is a +. When you click on that a window opens that says "Filter" and shows some channels in a dropdown. On some of the TVE sources instead of a + there's a pencil icon, and on other TVE sources there's nothing.

What are these "filters"... the + and the pencil icon... used for?

Thanks!

These are used to control guide mappings

You guys are awesome with the response, but still confused :slight_smile: What would guide mapping do?

Never mind, I found the topic in the support pages. Thanks!