Short answer: no.
All the things you say are requested since day 1 (or at least since a
year), but do not seem to catched any attention or desire by adobe. I will
support your request and ask the question as well. I really would like to
see some more options regarding viewer chrome.
do you mean the video controls?
if so, go to the media panel ( Window / Interactive / Media) and change your skin by selecting your media file and change the skin.
It is. At least, we have got it working as a feature we offer in our custom storefronts. Please PM me if you would like some additional information.
I agree with you on this one. If they would just have an option that when you touch none interactive section maybe just the home button appears.
I rarely use that navigation system and the people that I have tested ralley know what to do when it pops up. If the page number came up instead of a slider, I think people would get it. Plus instead of icons have text. Table of content, home, back.