[Canon EOS 80D, maybe not specific] clarify interaction between camera modes and plugin controls

[mjg]

In principle, the camera can be in either live view photo mode (960x640) or live view video mode (1024x576). In addition the programme dial can be in one of several modes (P/Av/Tv/M), plus the ISO and AF modes.

It's not clear how this interacts with the plugin settings. For example, in live view photo mode the "AF" button of the plugin causes AF to operate once, not continuously (probably expected but not useful). In video mode it does not seem to turn off AF.

The plugin's exposure setting are available in live view photo mode only, but I have not found a programme mode yet in which they have any effect. (On camera, only M allows choosing the aperture in video mode, for example, not Av.)

On the other hand, white balance settings work and are quite welcome!

So, it would help to know what (plugin setting) is expected to work when (in which mode) to judge whether there is an issue to be solved or just a specific combination to choose.