I recently got an android eink tablet (Boox Air). While there are some android app options I was wondering if there is any possibility of adding one feature to the web library. The web library has come a long way and now has most of the useful features of Zotero. I'm using it to download my pdfs for annotation, and then to upload the annotated pdf afterwards. However, this means having to delete the prior attachment as the attachment becomes duplicated. I was wondering first if it is possible to add a feature where Zotero checks if you have an attachment by the same name already and asks if you want to replace that attachment rather than uploading a completely new item to the library when you add a new file. This would make it much easier to bypass downloading other apps that may interfere with your database.

(A simpler version of this would be to add the option of replacing the prior attachment when uploading a new one with the same name to the same citation, but this is not nearly as powerful as my first suggestion)