"The R6 users default to the one day view which is unacceptable by the users..."
How about setting the view's initial format property to "1 week"
"and it is not easy to change ( week format is not bolded so you have to switch to the Month before you can click on the week drop down to choose which format)."
Did you know that you can right click on a calendar to change views, go to today, etc.