Nested custom containers?

[AndrewM]

I read in the release notes for TouchGFX 4.12.0 that "A custom container can now be nested within another custom container. This enables composing custom components into larger custom components indefinitely".

I am running 4.12.3 but I can't seem to get the nesting to happen in the designer. If I take one existing custom container and drag it into another nothing happens.

Note that I had created the project using 4.10.0 and then opened it in 4.12.3 in the hope I'd be able to nest the custom containers.

[AndrewM]

D'oh! Looks like it's easy after all.

I was attempting to drag the second custom container into the first within the 'Custom Containers' tab but the way to do it is to select the first custom container in the 'Custom Containers' tab then go to the '+' tab and add an instance of the second custom container.