ok I create a first Pull Request here: https://github.com/qgis/QGIS/pull/6678
a first draft of the implementation of this idea. more feedback are more than welcome Cheers Matteo _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer