The RES Modtools are a godsend for moderation duties. They don't work in the redesign though.

I don't want to opt-out of the Alpha, but I do want to be able to turn it off quickly so I can do moderation duties, then toggle it back on to work on redesign stuff.

Also, CSS support and an optional dark theme for the toolbar are a must!

And - being able to have a filter by Link flair would be particularly useful for some subs. I use it in /r/Simulate by using different national subdomains for certain link categories. https://ps.reddit.com/r/Simulate/

r/Science uses a query method - https://www.reddit.com/r/science/search?q=flair%3ACancer OR flair%3A%22Cancer AMA%22&restrict_sr=on&sort=new&t=all

However, if there was built in method to filter link flair with keeping a nice UX experience, that would be very useful.