Hi!
If I understand correctly, I can't add population (P1082) with qualifiers in quick statements? That is, this line adds only 321 as population (P1082) to Wikidata Sandbox (Q4115189).
Q4115189 P1082 +321 P585 +00000002010-01-01T00:00:00Z/09 S143 Q728945
Or I'm doing something wrong?