It is obvious and unavoidable that there must be a change.
The biggest problem with the proposal is there are two changes, not only the addition of a new button 1 but also a new action area different from the already established 1 and 2
What are effective ways to introduce this change without disrupting users' workflow?
Do not add more changes than those that are necessarily necessary
Personally
- I would keep a single action area with the simple addition of the new function button
- Color code keeping the same scheme for better identification of the new component
