I think it would be a good idea and helpful for those practicing here to filter the problems not only based on the tags and submissions, but on the basis of category of the question, i.e., Div2 A,Div2 B, Div1 A and so on. I want to hear from you guys about this. Thank you!

I want to know whether a group of people can participate in virtual contest of past rounds of codeforces and compete against each other. I don't know if this feature exists or not. I would love to know how to do this.. And if this feature is not available, please comment on my suggestion of this feature. :) Thank you !