EasyQuery (cf. T123149) works fine with some properties but not with others, which may be due to their data type. I would find it useful if it would work with more properties.
For instance, in https://www.wikidata.org/w/index.php?title=Q21145017&oldid=354349405#P2093 , I would like to be able to find more items where the author string "Gudrun Nürnberg" is used, optionally with the constraint of her being listed with a series ordinal (P1545) of 5.