I need advice on reconfiguring the control unit settings using KTUNER....

I installed a downpipe with a PRL sports catalyst and I want to reconfigure the engine control unit, but I did not find presets for this car in the KTUNER program.
In the manual reconfiguration mode, I don’t know which modes to change and whether there is a certain sequence. Maybe someone can tell me about the settings?
The official website of KTUNER recommends reading the manual, where I did not find anything concrete ...

 

Have you already setup the Ktuner app on your PC and locked it to your vehicles ECU? If that part is done, hit "File" while in the Ktuner app then select "New Tune". From there, you will see the RDX selection with an option to expand in the basemap creator window. Expand that option, then select "Factory xxxx" and the next option will be available below. Then you will have the option for Stage 1 or Stage 2 maps. Either of these will be fine, with 2 having more power of course. Once you select a stage and hit next it will bring you back to the main window where you can expand and change things. Most settings you would touch would be under main parameters unless you are versed in the tuning logic for these cars in which case you could go through the fuel and ignition settings.