Saving patches from the "Turbo Start" manual. This doesn't sound complicated to me:
You can store your own custom settings as one of the ME-20B’s 30 user patches using the following procedure: 1 Press WRITE—the MEMORY indicator and bank number begin to flash. Note: To show you the currently selected bank and patch memory location, the bank number on the display and the indicators on Pedal 1, 2, and/or 3 flash. 2 Press BANK or to select the bank in which you’d like to store your new patch. 3 Press Pedal 1, 2, or 3 to select the desired patch location within the selected bank. 4 Press WRITE—the patch is now stored into the ME-20B’s memory.
Editing patches:
EZ Edit is a feature that lets you create your own custom patches quickly and easily, allowing you to adjust combinations of effect parameters with a single knob. Use the following steps to try out EZ Edit. 1 Enter Manual mode as described earlier. 2 Press EZ EDIT. 3 Press the SFX, COMP, and DELAY pedals so their indicators are lit. This turns on each of the effect groups. 4 Turn the Parameter knobs to change the different effects: • The SFX knob—selects different effect types. • The COMP/DRIVE knob—selects different dynamic, overdrive, or combination effects. • The DELAY/MOD knob—selects different delay, modulation, reverb, or combination effects.
Link to the "Turbo Start":
http://cdn.roland.com/assets/media/pdf/me_20b_turbo_start.pdf
That took me about 30 seconds to find on google and I didn't even have to tell anybody to shove anything up their arse.