To navigate between groups and subgroups, follow the steps below
First, click on the downward arrow to the right of your top-level group name.
You will then see a dropdown with the top-level group listed again and a pencil icon to the right of it. Click on it and the second-level subgroups will appear.
Next, either select the second-level subgroup you want to use by clicking on it and then clicking ‘Apply’ below or alternatively click on the third-level subgroup you want to use and click ‘Apply’.
Once you have selected the desired subgroup, changes to the account, such as adding a new tracking number, adding a Google Analytics UA ID or setting up webhooks will apply to that subgroup.
You can always see which subgroup you are currently using by viewing the ‘breadcrumb’ at the top of the screen. In the screenshot below the ‘3rd Level Sub-group’ is being used.