If you haven't read our May 2022 Progress Report... we have BIG news for you. In fact it's so big, that it made us bump the version from Backpack v5.0 to v5.1. It took us 2 months to build, but we think it'll help you in so many complex use cases. It's now dead-simple simple to do calculations, show/hide fields, enable/disable fields etc depending on what the admin does in the front-end. Custom fr...