I am trying to use the Form container v2 component in AEM 18.104.22.168. Right now I am trying this on one of the pages in We.Retail. Here is what I have done so far:
1) Created a proxy component extending the Form Container component.
2) Pulled that component on the page.
3) First thing I noticed, it is not easy to locate the form container component on the page. I had to go to the content tree to be able to locate the component. Now, when I try to add any other form components (like text field, options, hidden etc) to the form container, I see that those components are not added to the form container but rather in the same hierarchy or parallel to it as seen in the JCR.
I don't know if it is something I am doing wrong here. Any advise would be helpful.
What you are seeing could be a bug - I recommend opening a support ticket and reporting it so it can be fixed. The Core Form component should work like the General Form components.