const static char* WDG_POINT2D_DISTANCE = "point2ddistance";
const static char* WDG_FEATURE_SELECTOR = "feature_selector";
+const static char* WDG_FEATURE_OR_ATTRIBUTE_SELECTOR = "feature_or_attribute_selector";
+const static char* WDG_DOUBLEVALUE_EDITOR = "doublevalue_editor";
const static char* _ID = "id";
//const static char* WORKBENCH_ID = "id";
const static char* FEATURE_INTERNAL = "internal";
const static char* SOURCE_FILE = "path";
+const static char* PREVIOUS_FEATURE_PARAM = "previous_feature_param";
// doublevalue properties:
const static char* INFO_WDG_TEXT = FEATURE_TEXT;