Question about editing courts

When using OEdit (or other program), how can you associate a specific area on the court with a specific graphic file (tlga, etc.).

And suppose I want to modify the Spurs court to be my court. I want to use the entire end area for my team name, but the sncrt.o uses three graphics at the end, one of which has the "SPURS" name. Suppose I want to delete the other two and expand the "SPURS" graphic?

How can I do this in OEdit?

Thanks.