What shouldn't be possible? (I'm not clear on what "it" is.) You can see from an older but still-accurate-for-this-device button device matrix staff posted a while back that the Hue Dimmer should support just pushed on buttons 1 and 4 with pushed, held, and released on buttons 2 and 3. I forget what the Eria does but think it's similar (not sure if it can do all on buttons 1 and 4 or not).
If you mean doing different things for 1-5 pushes of button 1 like you can on the Hue app, that's not natively possible since the device does not send different messages for that, just the same for every press, so this is something Hue "fakes" with software trickery. You can recreate the same functionality on Hubitat with a carefully-written rule or third-party app (what I wrote Dimmer Button Controller for).
...but perhaps you're talking about something else.
