I’m not quite sure what you are trying to achieve, but if I get this right: You have a set of features with an attribute “id_alt” and you want to filter the features coming from UUIDGenerator_3 that have the same value as ane id_alt?
If so, you could try a FeatureJoiner and join on the id in question. The joined features would be those with a matching id_alt.
"id_alt" has the value "Poly0001", and I would like to use this value to filter the output of UUIDGenerator_3 with the tester EDVKT = Poly0001
FeatureJoiner is an option thank you. I was just thinking whether there is a way making a value kind of global variable. I saw there is a transformer but i think it is smt else t