White Series Fan Switch + Home Assistant (Matter) — only shows on/off entity

Hey everyone — I’m using an Inovelli White Series fan switch (VTM35) with Home Assistant over Matter. The switch is set to ceiling fan mode and the paddle controls low/medium/high correctly, but Home Assistant only shows a single on/off switch entity and I don’t see any fan speed control.

How do I set the fan speed from Home Assistant in this setup? If there’s a specific entity/service I should be using or a configuration step I’m missing, please point me in the right direction.