About LINK ECU can stream

The car is a Mazda RX-7.
It is a vehicle without OBD communication.
Is it not possible to output the LINK ECU’s universal digital inputs and analogue inputs via the LINK ECU’s CAN output stream?
This is because I wish to display turn signals, the parking brake, and seatbelt indicators.
I replaced the unused analogue signal from LAMBDA 1 to display the fuel gauge, but I cannot display anything else as there are no other channels available. Is there a better method?
Sorry, my English isn’t good.

Translated with DeepL.com (free version)

Yes, you can output “anything” from Link ECU to CAN stream, and read them in RealDash by providing a custom XML file that describes the frames for RealDash.

Use one of the supported CAN adapters:

RealDash | Manuals | Supported CAN/LIN Adapters

Use Link DASH2PRO CAN XML as a starting point:

RealDash-extras/RealDash-CAN/XML-files/Link/link_dash2pro.xml at master · janimm/RealDash-extras

And basically just add new frames that ECU outputs into the XML file. I can help you with that after you verify the CAN connection and that its outputting those new frames.