A custom tab created for a specific device context report does not appear for all devices that share a common context type (e.g., Firewall). This occurs because the DX NetOps Portal generates a unique context report template for every distinct combination of primary Type and Context Types.
The Portal UI treats each unique set of device types as a separate report template. For example, a device with types "Router, Firewall" uses a different template than a device with "Switch, Firewall" or "Router, Switch, Firewall". Customizations like new tabs are applied only to the specific template of the device where the change was initiated. There is currently no inheritance or global application of tabs based on a single shared context value.
To ensure a custom tab is visible across all devices sharing a specific context, replicate the tab on each unique report template:
Note: Once the new Tab is created against one example of a given device type combination, all devices assigned the same type combination should utilize the same Context Report and show the new tab. The new tab does not need to be created once per device, just once per unique device type combination.