To install MrOrange in RxUniverse you will need to add it as a new Serial Device. Follow the link → How to install Serial Devices
The default Com Port Setting for MrOrange are:
If you want to check the com port settings on Mrorange you need to do so on the Tracer/Blocker combo unit
Click on the Essilo logo
Then the screen below will come up, click on Tools Logo and the Earth Shaped Logo.
Then you will see the Communication page information