Some basic system specs.(laptop/desktop, cpu/apu model, graphics card, driver vers. installed, OS), what settings are you looking for, would help someone to offer assistance.
They dropped the additional settings many versions ago. Those features are either controlled under other tabs or are controlled by the operating systems graphical settings.
On the newer builds of radeon software, the radeon additional settings was removed because you can now find all those settings such as
switchable graphics some where in the radeon settings. I have the radeon crimson relive 17.7, so I would go into System, and then to