After scrolling over all articles, show next feed or category automatically

Hi, this is little patch which I would love to see in tt-rss:
Requires having cmd_auto_catchup and on_catchup_show_next_feed set.
The next feed or category is shown automatically if you scroll over the last unread article in the feedview, after it has been marked read.
This avoids clicking the next feed/cat or "mark as read" or using keyboard shortcuts.
It enables very smooth touchpad/mouse-only operation, a similar feature was also in feedly.

What do you think? I use it since days and it works very well.
Cheers,
Wolfgang