Section access is primarily designed for reducing/slicing data not visual elements. So you can't remove elements from the application based on section access, but you can hide elements. Hidden elements will remain hidden for users in the accespoint, but if they gain access to the qvw there are ways to display hidden elements in the desktop.
Try the SA below and then define a show condition on your Dashboard sheet that the SHEET value 'DASHBOARD' needs to be available in order to display, do the same for your analysis sheet, etc...
There are a few extra links at the bottom of that post related to dynamic reduction, which is what you are looking to do potentially, but another way may be to just try using the Conditional Show option in the Sheet Properties and use either the OSUser() or QVUser() depending upon which Section Access you are doing may work too and be a bit more simple for you.
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