Using I2C LCD and Buttons Shield

[llarkin6]

This library is very convenient, has made my project a lot easier!

I am learning very basic programming to make a controller for an instrument I have made, so am very much a novice!
Presently, I'm planning to use this LCD Shield from adafruit, that includes some buttons, all through i2c:
https://github.com/adafruit/Adafruit-RGB-LCD-Shield-Library/blob/master/Adafruit_RGBLCDShield.cpp

Could people point me in the direction of what I might need to do to interface this LCD Shield with this library?

Would I have to write an adapter class for rendering the display as well as taking the button inputs, perhaps building off of the LiquidCrystal_I2CAdapter class?

I am just unsure how to approach this problem, and am trying to learn how to solve it.
Any support would be much appreciated!