At the moment, when there are two sections with the same name (e. g. in different tabs of a blueprint) the one further down in the hierarchy simply gets overwritten—so it’s easy to miss it at first during development.
I think it would be handy to show an error message, just like with duplicate field names:
The field name “xxx” already exists in your blueprint.
I tend to forget which names need to be unique und which don’t, so a friendly reminder while testing blueprints would be great.
Does this also apply to IDs if you are working with (custom) content blocks, since they are like sections on a page? Would be nice to have an ID field available by default, for quick-links to a specific location on a page - of course with smooth scroll enabled.
In that case, +1 for me.