Scan list configuration option found disabled when right click on a device in RSNetworx controlnet software. Does it enable in online only or does it need some extra tools to be downloaded?
The Scanlist Configurator Tool (SCT) can only be launched for PLC-5C15 controllers and 1747-SCNR scanners, or for 3rd party devices that support it (some SST interfaces).
It will be grayed out for any adapter-class device, and for ControlLogix bridge modules. ControlLogix connections are configured in RSLogix 5000, not in RSNetworx.
If you were right-clicking on a PLC-5C15 and still got the SCT option grayed out, then you have a problem with your software install.