Some carrier integrations do support ORM-D and other dangerous goods label requirements as an option in the Other Shipping Options section on the Order Details.
While you can use ShipStation's Label Messages feature to add "ORM-D" to a label, this is not an officially supported way to label hazardous materials. If your selected carrier has the Dangerous Goods option available under Other Shipping Options, we recommend you enable it there.
Please check with your carrier on their requirements for shipping any materials that require special labeling. These shipments may need additional forms or labels that must be created outside of ShipStation.