Our Grants team uses Opportunities HEAVILY - more than anyone else in our department. We do reporting of their work by appeal (Grant YYYY). Because appeal is not a filter option in Analyze: Opportunities we don't have the ability to report on grants (more than half of our fundraising goal) using NXT's analyze feature. This is also a hurdle in moving our grants team to NXT.
Please consider adding Appeals as a filter option to the Opportunities page.
Similar to this issue, we track using campaigns (instead of appeals), but if you add appeals, definitely add campaigns!