OH3 - how to find the KNX channel with a typo?

After switching to OH3 I just found randomly in my ETS Group Monitor an error with a GA, which I have not defined in ETS, but obviously in KNX.
So, after I don’t use textual configuration, but 100% GUI-configuration: how can I identify the channel on which I obviously have mistyped the GA? - without going in each and every Thing and looking in “Code” tab? :wink: