menu plugin, like style chooser on theme

Hi,

My client wants a fixed menu on the side that is hidden, just like on some theme’s like https://goodnex.webtemplatemasters.com/ and https://demo.wpwolf.com/steelpress/. When you click on these theme’s style editors, it slides open, and you see some buttons to choose your style. I want the same but without the styles, just some buttons with page links. Is there a plugin that can create this?

Thanks in advance,

Eddy