Minimize/Maximize Button

First of all, let me say that this plugin is a life saver. I’ve been trying to add dialogs for quite a while now, with little to no luck whatsoever, so thank you!!

As the title says, would it be possible to add a Minimize/Maximize Button, together with the close button (the one in the modal-header)?
I’m planning on using multiple dialogs to display quite a bit of content that would otherwise require the use of pages – which wouldn’t be optimal for what I need to do – and having a button to minimize the dialog(s) would be a great help.

Thanks in advance for any help you may give me and keep up the good work!