Auto group and sort after updating

My IPTV (m3u) channel list is set to update every hour. The channel list is set to group by Network and sort by Name. When there are new groups or channels imported the list does not re-group and re-sort automatically. I must do it manually to refresh the list. Could you please make this automatic after any update?

I would also like to be able to auto-update in increments less than 1 hour (which is the current minimum). Could this be changed to minutes rather than hours?