Cheers!
SkyDemon doesn't currently have an aerodrome brief or an area brief with customisable radius. Not all NOTAM are drawn on the map, so the only way to get a comprehensive brief is to either switch the NOTAM filter to "all" (in Plan) or actually give the product a route from which it can give you a narrow route brief.
See if it works and report back so we all get to know.
D