OVS in tables

Hallo everybody...

we want to implement a table with one inputfield-column. In this inputfield the OVS should be enabled, to select e.g. a material. The OVS should fill the complete row with data out of the selected material. But if we want to enable OVS, we can not create a table because of the cardinality of the node-element of the context.

If we select the cardinality "1..1" the OVS works but the table only can have one row :/ If we select the cardinality "0..n" the table can have "n" rows but the OVS is disabled.

Did anybody implements a similar application? Please help