Hi. I'm trying to filter data to show BLOCKED aircraft. I have seen an aircraft/call sign (I don't know which) as blocked. I wanted to track it, but it seems the application has no way (that I know of) that can filter aircraft to show only those who are BLOCKED. Is there a way to do this?

The other question I have is the Canadian Snowbirds are flying over a certain part of the country, but I am unable to filter Flightradar to show them. From another site (flightaware), the info shows as SNWBD1, but I was not able to add a filter for this either.