So pretty new to using D&D Beyond in general but something I haven't found is any support for the things mentioned in the title (or any threads about it). I think it'd be neat to be able to have a dedicated place to have curses and diseases easily available on the character sheet. I'm also running Out of the Abyss and madness plays a huge role in it. Other than the notes section, I don't see anywhere to add these things. 

There's also some optional rules for things such as the honor/sanity stats, lingering injuries and so on.

It'd be neat to see these added (for stats, on the stat page, curses diseases, etc) so they are represented and even have an effect on the character sheet (one curse in OOTA gives disadvantage on attacks and saves). Any chance for something like this?

edit:  another thought would be a way to link features from other books (again thinking specifically OOTA here) like new bonds adventures offer. Maybe a toggle like the homebrew/critical role content toggles at the start if you have the book or it's shared with you?

I second this. I use system shock and injuries a lot

Agree!