You'll need to assign cameras to a node in order to ingest video data and deploy an ML model.
You can assign cameras to your node in a few ways.
Assign cameras when adding a node
After a node is added, assign devices:
In the "Devices" tab, select the "Nodes" sub-tab
Click on the node you'd like to assign devices to
In the Devices section, click the "Assign Devices" button
Select the cameras that this node will manage
Click "Save & Finish"