Heloooo!
Simply make all your desired settings, and save again (save is at the top of the display) with a different name. Now you will have two settings for the microphone, an old one and a new one.
To view your saved user settings, tap the rectangle (top of the display, right in the middle) that has the name you gave it.
Tapping the name will open the folder with all user settings. Save as many others as you want.
Enildo