My Air conditioning has 4 zones and a main power switch. I want users to use the Zone switch to a) turn it on/off to direct air to the room and also power on the main AC unit.
In an item text file, you’d have both the AC Zone Channel and AC Power switch channel. With the follow profile, whilst the log wouldnt indicate that the AC power was switched on (by nature I’m told) it would work just fine.
I believe it works if you start from the thing instead of the item. Go to the channel on the thing and click the Add Link to Item. The first option there is whether you wish to create a new item for the link or add the link to an already existing item. The full array of profiles is available through that UI page.
Can we see the text config you are trying to recreate?
If I remember right, follow profile does offer an optional parameter for an Item name. I don’t really know what that is for and have not seen it used in real life. I suspect you just omit that.
General ‘follow’ usage - when applied to a channel link, it listens for state updates to the parent Item and converts those into commands for the parent channel.
Assuming the channel goes on to to some real device, that device ‘follows’ the state of the OH Item.
There must be a bug. You can see ive linked the zone on/off switch to the power on/off, I see the Zone turn on but the power of the AC unit does not. I can turn the AC unit OH switch on just fine separately.