What I mean by '...internal designer.' is to support the development of UI in the same way that is done for desktop apps now. I'd like to see support for adding events stubs (the same as those offered using 'Generate Members' within the designer), anchoring, etc. so that a web app can be created and deployed onto a server all from a single IDE/designer.
Having B4J serve up web pages now is great however, it would be much better to have the design of the UI done within the internal designer instead of having to integrate web page layouts/designs from another app or apps.
I see what you mean now... Indeed it would be usefull.
AGraham had created an APP in the B4ppc time, and Android too, I think, that alowed the creation of forms and placement of controls as well as events management... A similar app could perhaps be created with/for b4j...