You can control which cost centers are included or excluded in JobSiteForecast.
To adjust the cost centers:
From the main menu select SETUP, then COMPANY SETUP
On the setup panel under Cost Centers, add or remove cost centers as appropriate.
You can choose to EXCLUDE a list of Cost Centers or INCLUDE a list of Cost Centers.
Sometimes it might be easier to have a short list of exclusions rather than a long list of inclusions.
Also setting exclusions avoids the problem of having to adjust the configuration if new Cost Centers are added.