Hello Greg! ... mh thinking on it, it can be dangerous for misuse of it, there is more control over if the domain is manually added, and maybe it is done to not be used in this way as i intended ... but really it work magically as i've implement it. My DBX oauth php class have methods to unlink, create folder, delete folder and all the rest necessary, but since the chooser work perfect for uploads and run fast, i had code this plugin (that i would like to release now for free) with chooser for uploads. Thank to push up the request, whenever will be possible may i will return over, but in the while i will start something mine, using js promises mechanism, that i've discover, in simple way can be used to upload files also in chunks with easy ... but of course, would be really hard to crate the exact interface as is the native DBX chooser! ... i'll try as possible. Thank you again, see you soon, good luck!