Linnworks provides an additional functionality called the Warehouse Management System (WMS) which offers advanced options for managing bin rack locations and supports different storage types in your warehouses along with extended inventory tracking.   

WMS is not available for Linnworks users by default. In order to request access to WMS, please contact Linnworks Sales Team via our Support Center by creating a specified ticket. Please add the ticket title as "Enable WMS" and select the ticket category as Sales and Billing

Please see here for details on how to raise a support ticket, whether required. And these documentation pages provide you with further details on WMS.