This is the Features category
Let me help you define it better:
One aircraft request per variant of a series
“Bombardier CRJ100” is okay, “Bombardier CRJ Series” is not. Sub-types (ER, LR, engine types) can be combined.
For livery requests, only liveries for one variant are allowed
“Boeing 737-800 Additional Liveries” is acceptable, “Boeing 737 Next Generation Liveries” is not.
One region per request, not multiple regions for a continent
“Brazil Region” is okay, but “South America Regions” is not.
For other functions, only combine them if it makes sense to have them together
“LNAV and VNAV” is fine, but “Smoother A/P and Realistic Flap Deployment Times” should be separate topics.