I know it's not used anymore but can we get the option to move the bonus roll widget that shows up in older raids?

This should add support. You will only be able to move it after you have triggered a bonus roll since the last time you logged in or did a /reload, this is for two reasons:

1. To reduce clutter during edit mode, and
2. Because the Bonus Roll frame is not properly setup until you actually get loot that triggers a bonus roll, so there won't be anything to show during Edit Mode