— Network settings (in Network panel) are automatically saved when you close IanniX.
— xyz ranges or OSC output rate cannot be saved…
However, you can create template files for default messages and network settings. You can have a look at “Cosmosf.txt” in Tools/Templates of IanniX app folder. If you create a new one (Roland.txt ?), please put it in ~/Documents/IanniX/Templates. After restarting IanniX, you can switch your settings in Network > N icon.