The world is not a uniform place. OpenStreetMap manages to model it well despite all of the subtleties, intricacies and local characteristics found in different regions and countries. This is mostly thanks to the very flexible tagging folksonomy used to represent map features and their properties.
Until not so long ago, the iD editor was not able to fully leverage the potential behind this: compromises had to be made in order to make its single set of presets work globally. In the meantime, iD has gained functionality to tailor these presets for specific regions, allowing to better match the local OSM data to what the mappers are seeing in the editor.
Now we need your help to define all the little quirks and details for your region. :)
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