Hi Bruno,
Thanks for using Syncfusion Product.
As per the current behavior, Kanban control swim lane rows will be created based on given swimlaneKey field mapping from “data source” data’s. So creating empty swim lane is not possible with this behavior. Based on data source mapping value, swimlane row was created on Kanban board.
Let us know if you need any further assistance.
Regards,
Buvana S.