Currently, there are only five fields available for upload (import) of sentences to personal collections, namely Sentence, Translation, Cloze, Pronunciation, and Note, which is a bit limiting for those who want to create fully useful collections. As an example, in order to provide source links in my collections sourced from Tatoeba, I’ve had to resort to abusing the Pronunciation field, with the huge drawback of the link not being clickable in the browser. Additionally, I wold like to use the Hint field to show the number of words in multi-word clozes.
Consequently, I would like to see the addition of the optional fields Source-link and Hint (and why not Alternative-Answers as well?). This would bring personal collections on a par with the inbuilt collections.