Allow uncompleted shapes AKA lines to be drawn and saved on map.
Ability to draw/save lines on map. This is helpful for storing depictions of linear assets (roads, railways, pipelines, etc) which are not by nature polygonal. It would be handy to be able to save a line in the shape field, similar to polygons. Perhaps the line would be completed by double clicking on the last vertex.
This is possible to some extent today by creating a polygon which doubles back on itself precisely, such that a "zero width" polygon is form. For example, such a "line" polygon would have coordinates as follows: [[[Point a],[Point b],[Point c],[Point d],[Point e],[Point f],[Point g],[Point g],[Point f],[Point e],[Point d],[Point c],[Point b],[Point a]]]
This hack works, but it would be easier to have the ability to complete a line other than drawing a polygon which doubles back on itself.