Ok--one of the real strengths of the St Bede's Breviary is its flexibility. At the current time, the ability to pick and choose options on the desktop version of the site is driven by cookies (strings of code that get stuffed into your browser). Unfortunately, cookie support is spotty at best and capricious at worst in mobile environments.
For the brave, I do have a mobile cookie-cutter that may or may not work on your system. Give it a try but be aware it may not function properly: Choose your preferences. In the meantime, however, the Mobile Breviary retains the six initial "pre-set" styles that the original Breviary started with.