4.63 - master, slave, free-run logics

hello again,
i want to create a master/slave/free-run logics, which should work with several instances of a poly and like this:

- any of all instances can be master (that means sending a data stream), but there can be only one master at a time. if a new instance becomes master, then the old master is set to run free.

- any other than the master instance can be set to either be a slave, means controlled by master, or running free. when the master changes, the slave settings remain active for the new master.

i "combed" the tutorials and references for this, but can't quite figure out how to start. i could probably make a very complicated patch with a lot of switches and such, but i wonder if there's objects already specifically dedicated to the task.

any hints are very appreciated, thank you,

jrp