On a loco such as a DB BR 423, please let us use either trigger or shoulder button for our combined throttle/brake handle. For me, it is an accessibility issue as my motor neuron degenerative disease progresses in my 72nd year. For a 14 yr old with Friedrichsons Ataxia, it could also be an issue and for any young petson with Cerebral Palsy. You fail to use my USB C mouse on my PS5, unlike other drving simulators. Why ? But i have to choose when to use one key on my BT keyboard. Yes, a Bluetooth keyboard marketed for the PS5. On other controller-focussed drving sims, i use keys most accessible to me: the up down arrow keys or the right side numpad Insert key. I choose which side, left or right, to use a Ctrl key. Do you not have a Parkinsonian beta tester ?