Recover diminished application

[ionmich]

Using XFCE

My desktop is rather clean. I keep several application icons in my lower panel and click on them to start them. When running if I click on diminish (right hand top corner [-]) the window disappears and I can find no way to return to it. Is there a way to show currently running application windows on the panel so I can return to them? Running "top" shows them still running and I have to kill them to start again.

Thanks in advance.

[lami07]

Your panel is missing a plug-in. Add " window buttons".

[ionmich]

Your panel is missing a plug-in. Add " window buttons".

Thank you for your speedy and simple solution.