Greetings,
Although this is about MTRX - XMON follows the same conventions with regard to associating available sources to the top bar of the Monitoring Interface on the Master Module. Short story - it is possible to reorder or omit any of the available sources by choosing them from the center interface. Check out this knowledge base article and let us know if you still have questions.
http://avid.force.com/pkb/articles/e...s-MTRX-with-S6
best,
Jeff