Hi @KeKeSeB,
yes, the P44 device model has support for scenes and rooms (as in the DigitalStrom device model).
As this model does not 1:1 map to hue scenes and groups (and even less to DALI scenes and groups, which are very limited in number), the P44 has the "optimizer". The optimizer observes scene calls and auto-creates native hue scenes for the most often used ones after a few invocations. Similarily, for smooth dimming, groups of dimmed-together lights are created. You can enable the optimizer in the dialog that appears when you click on the (i) button in the "hue" section title row. There's some further explanation for the optimizer in the DALI context here, it works the same way for hue.