Can we make Yammer shorter?

Hi all,

I'd like to make Yammer shorter.

I know Yammer Webpart can show 4 conversations at least but it is too long for our page.
Our farm will not allow any external sites including Yammer to show on iframe.

I tried to put iframe of Yammer Webpart page as an internal site.
Then, I have a problem with offset position.
I would like to show "just" Yammer Webpart on iframe.
I don't want to show page title or something, just show Yammer Webpart.

Is there any clue?

Your support is highly apprecited.

Best Regards,
Takeru Ishikawa