If you want to jam-sync your Tentacle SYNC E or TRACK E devices to an external timecode source and use this as a timecode source within the Tentacle Setup App,
Proceed as follows:
Start one Tent in Red Mode and connect it with the suitable adapter cable to your timecode source and jam-sync the Tentacle to it until the Tentacle runs in Green Mode.
Select this one synced Tentacle device in the device list, tap on it and go into its settings
Scroll all the way down and tap on Sync to this device
A window will pop up and you can choose between Sync All and Sync only Red Mode. All other Tentacles will now synchronize to this Tentacle devices timecode