SALES POP UP:Fomo+Social Proof

Good app, but it needs a few improvements:
1. Order Update Interval is only limited to 3 days
2. Pop up shows the oldest order by default. No option to show the most recent order first
3. Any css code written in the Appearance section disappears, which makes it hard to make further changes in the future if required
4. An option to hide orders where the products are no longer available in the store would be great