I guess I'm like many and have a tag which is linked to a follow up email. In my case it fires 4 days after sending the proposal and it a simple follow up. However in that intervening 4 days I get quite a few questions, etc which make the follow up email redundant. And it's a pain going into each proposal to add/remove the tags.

It would be much easier if we could add/remove tags from the proposal list.