It's unfortunate that QGIS does not allow the use of the Measure Line tool while activiely editing something with Add feature or Vertex tool. As soon as one of the latter tools are switched on the measured line disappears along with the measure window. In some cases however it is necessary to place a point or a line in a certain distance off another object. Therefore it would be handy to see the measured line while editing. Is there a workaround maybe or an alternative to the standard Measure Line tool or maybe any configuration which allows the Measure Line tool to stay open during editing?