API Viewpoint position in Issues/Markups

[Iyur]

Hello there.

Is there any way to retrieve viewpoint position (if exists) for the chosen issue/markup? I could fetch issue data, comments, attached elements etc, but haven't found any reletaed commands to get viewports in API reference. Meanwhile, there is BCF export, that actually extract the data about viewpoints (you can investigate them while exporting into the bcfzip format). So, they could be retrieved somehow, but how exactly?