Guru version FAQ
Where are "diverse breath methods"?
Diverse breath methods are available for self-created patterns only. You can copy the existing pattern and then can use this feature (see the next question why so).
Choose the pattern you're working with, turn the Dynamic mode on (switch in the top right corner in Dynamic tab), double-tap on a cycle, and see the menu item "Breath methods" in the right drawer appeared. Pick breath methods for this cycle. Also keep in mind that you can alternate the nostrils every few cycles if you wish (see this option in the right drawer and remember to press "Apply" after you're done with the settings).
Look here for the detailed instructions.
Why can't I change the default pattern ratio even in Guru version?
It's important to have those 7 basic patters untouched, as you may need them later. Otherwise the specific effect for a certain pattern cannot be guaranteed if the ratio has been modified.
You can copy the existing pattern for your experiments.