Adding descriptions and synonyms in the "add multiple terms" UI

Issue Summary

The idea behind this module is very good(!). However, for those of us who need to add descriptions (alt=..) and synonyms it's unfortunately nonetheless useless (as we need to edit every single term anyway..). This can be fixed by altering the UI. My suggestion is to put respectively , and in a horizontal three column layout (instead of the default vertical one column layout implemented in the default "add term" UI).

Such an implementation should in my opinion be included in the core taxonomy module as of the next version of Drupal.

One thing this doesn't do though is facilitate cut-n'-paste to multi-line field, but for those who're creating vocabs from scratch (not importing them) this would've been perfect.