• What shortfall are you trying to solve in the current functionality of the addon?

The "Add a new custom source" button placement is inconvenient for users who have/use several custom sources.

• What new functionality do you hope to attain with the addition of this feature?

I would like to see the "Add a new custom source" button either moved to the top, duplicated to the top, or ideally, if possible, have a "fixed" position on the UI, so it is visible no matter where you scroll in the list.

• How would you or others use this feature?

This feature would make it easier to add custom sources, especially for those of us who have several.