Feature Request: Curtain 3 mode switch
### Problem

_No response_

### Solution

Hi,
Would it be possible to add a dummy switch to select the opening/closing mode of curtain 3. 
This is for automation and to have on demand silent mode. 
For example automation to open curtains in the morning in quiet mode and after that can be opened in performance mode if wanted without having to modify the homebridge config.
Thanks

### Alternatives

_No response_

### Additional context

_No response_