How to change lenght of a section

I made a song, intro - verse - chorus. I do not know how to change the length of the verse.

And the chorus I made too short. But I cannot make it longer, I can only make a new section and name that chorus as well.

I thought I could change lenghts of sections after they where created, but is there a way to do that nowadays?

Using the Insert Before and Insert After buttons you can add measures to a section.

Thank you. I see that this helps.
I also found out that I can select a range of bars and then make a new section for that selection.
So this combined together solves the problem.