I ran into another issue that makes the plugin not useable for me.
My Setup is kirby version 3.1.0 and the latest Custom add fields release.
The dialog created by the Plugin does not validate required fields anymore.
I checked the index.js file and the latest commits on github but i could not determine why the validation process is not triggered. So pages are added even if (required) fields are emtpy.
The default Add Dialog of kirby works as expected.
I think it should be a seperate threat because it is an issue that occurs after updating the kirby core to the latest version (3.3.2). Cancel adding a Page in PageModel - hookPageCreate is solved.
I mentioned it here because it was one of my tests to solve the required field issue and just wanted to give you some more information.