TinyMCE Custom buttons

Hi,

Is there anyone out there who has working example how to add custom buttons to TinyMCE? If the example works with the TinyMCE Advanced plugin, I would be really happy.

I know there is this “tutorial” ( https://codex.www.ads-software.com/TinyMCE_Custom_Buttons ) but it says that you need to know all sorts of things including Javascript to understand how to make the custom buttons.

I wonder has anyone actually made those custom buttons? Anyone?