I've 4x7=28 VirtualSet inputs in a preset, each one with three layers. The top-most layer is an optional one on each input and which I would like to toggle in parallel through a shortcut. There are two possibilities: by using the VirtualSet-specific "Visible" button under "Setup" and by using the enable/disable toggle under "Settings > Layer". Now I've two questions:

1. It seems like the "Visible" and the layer enable/disable are independent(!) of each other, although they both seem to optically disable the layer. Why are they not directly linked and what is the difference?

2. For the layer enable/disable there is an API Function "MultiViewOverlay" which can be used. For the "Visible" button I do not see a corresponding API function. How can "Visible" be controlled through the API?

Yes, MultiViewOverlayOnOff or LayerOnOff can be used for toggling the layer enable/disable button, but NOT for the "Visible" button under "Setup" (right to the input when not collapsed). It is even worse: the "Visible" button has no API and its functionality is actually buggy: when "Visible" is off, it can be turned on just fine without loosing the layer source (can be seen under "Setup / Input". BUT: if you toggle "Visible" off, then just open "Settings / Layer" once (without changing anything), the previous layer source is gone (you see "None") and when you close the "Settings / Layer" again the "Setup / Input" now shows "None" and you have to re-select the source input again. This is just broken functionality. I would expect that the "Visible" button either is independent of the layer enable/disable functionality and then also has a dedicated API or it is directly coupled to the layer enable/disable functionality and then should at least not loose the source input when switched off and the Settings/Layers is opened as an intermediate step.

PS: It's with the latest version 25.0.0.32 (4K edition), of course.