According to this document: docs.microsoft.com/.../pos-view-extension, FulfillmentLineview supports custom columns.
However when I lookmunder my RetailSDK under POS\Extensions\SampleExtensions\ViewExtensions, I see only folder FulFillmentLine with the typescript file for FulFillmentLineCommand. This corresponds with 'OrderFulfillmentView' which only support a custom app bar button at the moment.
I am on v10.0.7 PU31. I see th edocument was last update don 01/17/2020, so very recent. Is it posisble that the FulfillmentLineView is only available in a later version?