ProcessorLandmarkExternal add class and id not mandatory

created branch 490-processorlandmarkexternal-add-class-and-id-not-mandatory to address this issue

mentioned in merge request !469 (closed)

created branch 490-processorlandmarkexternal-add-class-and-id-not-mandatory-2 to address this issue

mentioned in merge request !470 (merged)

mentioned in commit b24a8cdd

closed with merge request !470 (merged)