I might plug my own Dimmer Button Controller app here--I wrote it to do exactly what you're asking (really yo emulate the Hue Dimmer behavior but on Hubitat, but you can configure any button to do anything; with 5-button Picos, I like 1 and 3 as scene-cycling buttons).
That being said, you can't currently natively access Hue scenes from Hubitat. So you'll either have to capture or create them as Hubitat scenes or, in my app, manually specify the level, color temperature, and/or color for each bulb/group. It can use Hubitat scenes but I haven't tested it that much, and Hubitat also doesn't support start/stop raising/lowering (smooth dimming) commands on groups, so "dim while held" won't wok on groups. If you use it and find any problems, let me know. I mostly address individual Bridge-connected bulbs with manual settings, so that's mostly what I've tested.
