We are in the process of rolling out an entirely new issue detail view for Jira Cloud, across all products. This new issue experience has been completely redesigned and includes a single status transition button with a drop-down, which will show all status's and/or all transitions --> status if you have multiple transitions to a single status within your workflow. The ordering is just alphabetical within each status category (to do, in progress, done).
The new issue view is available to all Jira users. You can enable it by going to your personal settings, then scrolling down to find a Jira Labs section and enabling it.
Workflow transitions and status are a key part of any Jira issue, so our aim was to make it much more prominent, easier to understand, and easier to update when you want to make a change. You can read more about all the new features here:
If you have any questions, please don't hesitate to ask. I will be closing this issue as it should be addressed by the new issue view. Thanks!
Jira Cloud PM