How to actively modify the name of a patent application?

You can submit an opinion statement to explain how it has changed. Please note that there is a time limit for active modification. You can look at the relevant provisions of the implementation rules. You can also use the form of recording project changes, but I think first, it costs money to record project changes, and it costs nothing to actively modify them. Moreover, changing the description item can only change the theme at most, and the protected theme of the claim and the name in the specification may not necessarily change.