Key toll - no options for vignette


I have seen that the “key:toll” does not differentiate in case of vignettes. Waze has just recently tagged the motorways in various European countries according to their national or provincial vignette (or other special tolls, such as for tunnels). I thought it would be quite practical to have this in OSM as well, also for the future.

Thus the “key:toll” should be adapted to allow for multiple routing options according to acquired vignettes (e.g. if I have an Austrian vignette, but do not want to use the Slovenian toll). See the discussion at the key description.

Would be great to start the process of further extending this key. Thanks!