In manually added map I agree, but it will be nice to have that functions in automatically generated maps. For now maps are generated based on LLDP, and don't show backup/stand-by links. It will be even grater if the automatically generated maps could show in some nice way phisical inks in agregation (especially if any links included in the aggregation are broken). And last thing, it will be nice to have in automatically generated shown in some manner (like color) link speed, then you can quickly see if something are link in 100MB insted 1GB etc..