I'm using Sage 50 Premium Accounting 2021 and on this page: "Turn On or Off Inventory and Service Item Categories" (http://help.sage50.na.sage.com/en-ca/2016/core/Content/System_Settings-ss/ss-pr-is-EnableInvSvcCategories.htm) it clearly lists "Available in Sage 50 Premium Accounting and higher." - yet I cannot find the "Setup menu" "In the Home window".

And, if it's because we have "multi-user mode" turned on, the page titled "Switch to Multi-User or Single-User Mode" (http://help.sage50.na.sage.com/en-ca/2016/core/Content/Workflow-wf/wf-pr-xx-SwitchMultiSingleUser.htm) ALSO has instructions to do something that isn't possible... it says: "In the Home window on the File menu, choose either Switch To Single-User Mode or Switch To Multi-User Mode." - but, when I click the "File" menu open, there IS NO "Switch To Single-User Mode" or "Switch To Multi-User Mode."

Seriously!? HOW can so many items be wrong or outdated?!