Honestly, but that is of course a personal percption, I never liked the Safari Shortcuts for shifting between Tabs for and back using cmd -> . and I also changed under /Settings/App-Shortcuts for Safari also using cmd+ctrl + arrows for Safari. Thats fare more convient for me. There you can change for your own any Application Short Cut for your own, also for Orion. Simply add first the App "Orion" secondly you can enter the current short cut, followed how as it should be for you. That easy. And this solves also the Problem, because, every Human is different in his own preferences, especially when it comes to Shortcuts. Apple address this sentens since almost 15 years, where users can simply override for any application the shortcuts as the user likes to use...
Go to Settings/App-Keyboard Shotcuts