Add custom plugin to role configuration

Hi,

I was tasked with the ungreateful role to support a simple website for a makerspace. Unfortunately web development is not my strong side and a recent update seems to have broken how our side was supposed to work.

We have a custom plugin that was written years ago by a former member of the maker space. Via Members we have defined a role, that can basically only acces this plugin and its menus. For some time this special role can not longer access the plugin and its functions.

I tried to look it up, and the plugin is no longer listed in the Members rights configuration page. There seems to be a way to add custom plugins but I can’t figure out what to do with the input field to add user defined permissions a all.

On the other hand we have mail poet setup in our WordPress installation and this is even listed with its own group in the Members configration page

So there should be a way to configure a plugin to get listed there automatically. Is there a foolproof way you can show me?

BR Chris