Transaction groups

How can I wtite from a PLC to other PLCs using Transaction Groups ? Is there a guide (Not in Ignition library) I can follow ?
Thank you

Yes, this is possible.
If you double-click an item in a transaction group, you’ll see the ‘Target Type’ dropdown along the bottom. Set it to Other Tag, and you’ll be able to select another item within the transaction group to write to.

Can I do the same thing using a change value script written directly on one of the two tags ?