In Adobe Illustrator I am using all document area for save some not usable part of document (for continiusly constructing), and artboard for me it is part of final document. For example, I am adding artboard with A4 format and constructing some infographic here. All other part of document for me too very important. Hence, I do not like that the rest of the document after enabling artboard becomes unavailable and hiding by mask. And I too want to separate layers and artboard. For me artboards - it is good function for save parts of documents in fixed format but I want to save possibility to can select all layers by mouse after activating artboards. No need to hard integrate layers and artboards. And I want to see all area of document after activation artboards.