two more points I would like to suggest regarding drawing board outlines:
1.) In the board editor you can only draw a board outline using a polygon. A rectangle function would be useful here, since most boards are certainly rectangular anyway. And since the dimensions are mostly known, it would be useful if you could specify the length / width for the rectangle before drawing, so that a left mouse click is enough to draw it (e.g. centered under the mouse cursor). This also applies to the package editor.
2.) It then would also be useful if in the properties of a rectangle/polygon, in addition to the coordinates of the corner points, the total length and width of the object was also displayed and could be edited. So you could quickly scale / change a board or package outline.
Hope this makes sense,