Hi Philippe,
You are right here. We applied our own plugin, that you should buy, and use in your application, by replacing existing elements with paid ones.
You can also check the plugin library, to see if, there is any other solution, that fits your needs, but than you will need to re-set the workflows to fit the chosen plugin.
If you will need hints, or stepbystep, just let me know, and I will record for you short screencast.