Hi team,
When adding entity attribute that associate with entity in another data store, the cardinality field does not allow to choose “Collection”, see below screenshot:
However after I manually change the field to list, it shows correctly in the right side of entity designer:
Jmix version: 1.4.0
Jmix Studio plugin version: 1.4.0-222
IntelliJ version: IntelliJ IDEA 2022.2.3 (Ultimate Edition)