Changing the digital pin in case the board doesn't have enough

[Gildedboy]

right now im trying to use the program and so far so good

sadly my arduino board (it's a Leonardo sold by a local electronic company) only have 13 digital pins instead of 16, so I'm unable to map out buttons B6-B7-B8, it is possible to change it so I can use another available pins?

the pin layout it's similar to this

[slybunda]

you can map those pins to the analog ones A4 and A5