I am not sure but I think you are confused between Revit view scale and Autocad Viewport Scale...In revit you draw to true units and the scale is manage via View controls and not like Autocad viewports scaling ie: Once set in the View Control bar or Properties dialoge it will be true scale to which your sheet will show and plot once you add that view to the sheet (No scales are set on the sheets - what you see there is extracted from the view and ready to plot Hence when you plot your sheets do it 1:1 without any scaleing factors
That being said; activating a Viewport on a sheet in Revit allows you to open a direct link and work as if working directly on the view from the sheet. ie: zooming an active viewport on the sheet will not affect the scale of that view. It will always maintain the scale set in the Properties/Controls of that view.
You want same view but different scales? Go to the Project Browser; right click and duplicate the view; reset scale to the desired ratio 1/100 1/50 1/5 on the duplcate/copy and drag that view on to your sheet.
*Edit* I just noticed @LisaDrago signature "You can't think AutoCAD and run Revit." funny Coincidence