I take notes from meetings in email then send it to mailparser to extract (a) who I met with, (b) date, (c ) notes, and (d) our commitments/due dates. I have been able to use search and create to create new docs when the don't exist and they append the data from that meeting, but the subsequent meetings they don't. 

Does anyone know where I can find more extensive documentation on the google docs/drive? 

I can use multiple zaps with three hard coded paths per but what fun is that?