Would love the ability to label drafts.
Why:
1) Force you to stick to tweet about specific content categories that you can plan in advance
2) See at glance if you have a balanced weekly or monthly tweets schedule
Next
3) Add metrics so that you see which "topic" is driving more impact
Another use case:
It would be great to have the ability to tag posts so we could easily visualize different categories.
For example, I do a lot of sponsored content.
I'd like to quickly look at my queue and see every sponsored post that I have scheduled in the future. Right now, I have to click on every post to know whether it's sponsored or not.