Using Table Config.Columns "actions" with function endpoint

Dear all,

do you know if there is a possibility to use the available “action” in a table together with a function endpoint?
What we have found out so far: We can use these actions together with workflow endpoints but need to specify variables that should be handed over to the workflow directly in the table and not in the endpoint. However this logic does not work for functions because functions cannot seem to be executed if no payload is specified and if we specify a payload, we cannot seem to use the variable that was set in the table column action.

Has someone tried this or knows how this should work?