By far the best way to easily modify the WordPress admin to do your bidding

I can’t get over how incredibly powerful this plugin is. You can whip wordpress into a CRM, or simply, the most user friendly experience ever for the users of your admin. The support community is extremely responsive. Try it and you’ll never think of using any other custom fields plugin again.

Steve and Kevin started making this a few years ago and it’s clear they are devoted to building this further for many years to come. Extremely grateful for all of their hard work!