Above picture shows the set of changes made.
You can then commit the changes with the small form, which is located below the summary. There is also a button to reset when all changes are discarded.

It is good practise to make related changes that cover maybe an hour or two of work, and add a concise message describing the changes.

Because breeze is more or less single user, it is goo to get into the habit of committing changes at the end of the session.