writing data to table field from csv for another index field

i have spoken with docuware and they currently say it isn't possible but does anyone have a workaround to write data to a table field from either a csv or another index field? looks like autoindex doesnt allow it and neither does workflow manager

The only way I know of is using the API:  https://developer.docuware.com/dotNet_CodeExamples/workWithTableFields.html