If you have 20 tyFlow setups, you could use a script to turn them on / off. The script below will turn them all "off" (change to "on" to turn on). Paste that script line in the listener, and press 'enter' (on your numpad, to execute it:
for tf in GetClassInstances tyFlow do tf.enabled = off
for tf in GetClassInstances tyFlow do tf.enabled = off