Overview:
Down Trigger: This function is executed when the MTBFMTTR object tells its members to break down.
Up Trigger: This function is executed when the MTBFMTTR object tells its members to come back up.
Access variables:
current: the MTBFMTTR object
members: the members list in the MTBFMTTR object
involved: either 1) the MTBFMTTR object or 2) the involved member
curmember: the current member (will cycle through all members) - not available in all options
index: the rank of curmember in the members list
