Month View Format

Is it possible through the open source for me to alter the Month view layout. As well as the seven days of the week, I need an extra column on the left to say the week number Plus a code as to where the crew is based.

I.e. week 5 - Aberdeen

week 6 - Edinburgh

Week 7 - Manchester

This information would come from a table in the database.

Would it be possible for me to change the code accordingly or is that not fessible?

Thanks Mike