I would like to get a array with id's of all selected features of layer
"id_of_layerB") as a default-value in a qgis-attribute-form of
I tried something like:
aggregate(layer:='LayerB', aggregate:='array_agg', expression:= "id_of_layerB", is_selected('LayerB', ???) )
but I have no idea how to realize this (especially what to put in in the "???"-part of the expression-part of the code.
I think, the
"is_selected"-function checks agains just one feature, but is there a way tho get ALL (one or more) selected features of