Hi Renan,
Greetings from Syncfusion Support.
We have validated your shared query at our end and let you know that currently “Drag and Drop to reorder the columns on Kanban board ” feature is not available in Kanban. So we have consider your requirement as feature request which will be included in any of our upcoming release. You can keep track of the status at your end through the below feedback.
Kindly try the above sample and let us know if you need further assistance.
Regards,
Vinitha