Writing/editing code for Respeaker demo

Hi all,
I have just got the respeaker 4 mic array for Raspberry pi. It works fine after setting it up.

I am trying to edit the pvrespeaker/ demo/ picovoice_demo.py file so I can add some more colors in the array. However, I cannot edit the file because I followed the instructions on Seeed Studio wiki(https://wiki.seeedstudio.com/ReSpeaker_4_Mic_Array_for_Raspberry_Pi/) which installs the files through PIP package ( files are inside the usr/local folder and not editable).

I then tried to clone the folder using git. That threw a number of errors right from modules not found to syntax errors.

Any suggestions on how I could access/edit this file or make a new file but at the same time use all the other additional packages it uses in that main folder?

Kind regards and thanks for your help.