Currently there is no way to limit some vertex features to way/polygon features with specific tags. From https://github.com/openstreetmap/iD/issues/9489, one should not be able to add anything else as a vertex of power=line/minor_line except power related features (transformers, breakers, switches, power poles, power towers etc.). The same applies for traffic calming features and roads, highway=stop and highway=give_way on roads.
Currently there is no way to limit some vertex features to
way
/polygon
features with specific tags. From https://github.com/openstreetmap/iD/issues/9489, one should not be able to add anything else as a vertex ofpower=line/minor_line
exceptpower
related features (transformers, breakers, switches, power poles, power towers etc.). The same applies for traffic calming features and roads,highway=stop
andhighway=give_way
on roads.Related issues: https://github.com/openstreetmap/iD/issues/4138 https://github.com/openstreetmap/iD/issues/4139 https://github.com/openstreetmap/iD/issues/9489 https://github.com/openstreetmap/iD/issues/9574 Possibly https://github.com/openstreetmap/iD/issues/4173 Possibly https://github.com/openstreetmap/iD/issues/5977 Possibly https://github.com/openstreetmap/iD/issues/9488 Possibly https://github.com/openstreetmap/iD/issues/9713 https://github.com/openstreetmap/iD/issues/8263