Are collapsible panels possible?

I see there is an "accordion" option, but what I need is a collapsible panel that I can configure to not collapse.

Something like this page:

Although that page is going to be completely redesigned in the new wordpress site.

Is this something I may need a plugin to do? And if so, how do I enter shortcodes? (that's voodoo to me .

Thanks very much (and sorry for asking so many questions.)