Hey all! Just wanted to say thanks for all the awesome work being put into Superset! It's a really great tool. We've been using it for the past 6 months as one of the main entry points into our warehouse. We have just over 100 users using it atm. Our stack is mainly Druid, Presto, and MySQL. My feedback on superset is definitely positive, however like anything, it for sure has it's pain points. Just figured I'd share some of them that we face:\n\n\u2022 Large CSV dumps.  Nothing bothers me more than when a user complains about it as most of the time a user wants to download a CSV bigger than even excel can even open, however I've grown to understand this need a bit more from users. Often times, there's integrations someone from marketing, accounting, etc needs to run to push to an SFTP bucket or something equivalent, and although they likely can't even open the files themselves, sometimes these are for POC's for some integration a team is looking to test out. I totally understand the limitation that superset renders the results in the browser, however just sharing the pain point there.\n\u2022 Users leaving auto refreshing dashboards on. It's common for a user to have an auto refreshing dashboard open, leave their browser window open, and have it run a really complex Presto query every 10 seconds. This adds a lot of load onto our Presto cluster or other parts of the stack, and we end up having to reach out to users to close their browser windows. Ideally, there's something in the FE that stops an auto refreshing dashboard from running after X time (might be a good administrator setting)\n\u2022 Presto doesn't show catalogs or schemas in SQL lab. It's pretty confusing to explain to users how to query presto via superset when they can't see the catalogs themselves (you can tell them to run `show catalogs` but this is hard to explain to a lot of people). I might be missing a setting or something for this, and if there's something I don't know on this, would love to know how I can add this (our presto cluster is connected to 6 different sources)