my Vaillant Recovair Unit VAR 260/4 - Boost

[Hexcodes]

Before requesting a new feature / a new sensor

• [x] The feature I'm requesting exists in the myVAILLANT app, and I attached a screenshot
• [x] I tested the latest release, and it's missing there
• [x] I've attached exported data of my system

Describe the feature you want

In my Vaillant im able to set the Speed (1-6) of my Recovair Unit VAR 260/4 and also enbale the boot mode of the devices. When I try to do the boosst mode in Home Assistant using the addon I only get "Not supported on VRC700 controllers for the function "ventilation boost". I would expect to at least enable the boost function, but better would be to also be able to set the speed level in home assistant.