Cant find what's on the documentation : accordion menu


I’ve juste included a Accordion Menu Page in my web app.

In the element tree, i can’t see what is on the documentation :
Blocks container 860 (do not rename)
This group contains the responsive settings for all blocks on the page. Any new blocks should be added to this group.”

Here is my app.

Where do i have to add the new block if i cant see the 860 please ?

Thank you for your help

Sounds like you are using the new responsive template which is correct. It does not have that group you refer to. Add any new blocks to the “Group Main Content” group which you will find in the element tree.