Hi there,
Latest Bamboo version 3.2 allows you to filter plans using labels.
According to the document below, the only requirement for labeling a plan seems you got a bamboo user account.
http://confluence.atlassian.com/display/BAMBOO/Labelling+a+Plan
However, when I tried this my end, and logged in as a user without bamboo-administrators privilege, I was unable to attach a label to plan.
Am I missing something? I appreciate your help.
Regards,
Daisuke Niwa