To assign a currently unassigned vehicle or driver to a node:
From the Tasks section of the navigation bar choose Hierarchy. The Hierarchy screen opens.
Click the Unassigned Vehicle or Unassigned Drivers tab. Note that these tabs are displayed only if there are currently unassigned vehicles or unassigned drivers in the system.
Locate the vehicle or driver in the list.
Drag-and-drop the vehicle or driver to a node in the hierarchy tree. To select more than one vehicle or driver to drag-and-drop to a node, hold down the
Shiftkey and click the rows with the left mouse button. Drag-and-drop the selection to a node in the hierarchy tree.
Depending on your account configuration, you might only be able to assign vehicles to nodes that have no child nodes. You can only assign drivers to nodes that have no child nodes.