For the first question we got via another channel this week:
With version 4.5 we will offer to configure the url to open the user documentation. Here you can give an intranet page as proxy between our internet help.eanio.de and your internal scenario documentation.
Answer to question 2: we are working on a concept to deliver the documentation as pdf and html-pages who may host on an intranet. Then you can reconfigure the link to the enaio documentation as well.