Dynamic width and height to components

I started trying Axure RP 10 (we still use the 9 version, but we’re trying to find out whether 10 version would improve our workflow) and I can’t help but noticing that components don’t resize automatically.
I tried to create a single button with dynamic height and width and, when it came to inserting longer texts, it wouldn’t resize.
Similar behaviour with RP 9’s masters.
Did you find any workaround for it?