API Support for Bulk Assignment of Additional Devices to Maps

NetBrain currently does not provide an API to assign devices for visibility-only purposes on a map, a function only available today through the manual 'Add additional devices for Map' option in the user interface. This limits customers who need to apply this action at scale across many sites, requiring manual repetition for each map. This enhancement would expose an API endpoint that allows devices to be added to a map for visibility purposes in bulk, matching the capability of the existing manual option. Customers managing large environments with many sites would gain the ability to automate device visibility assignment, reducing manual effort and improving consistency across maps.