Admin note: Thanks for your interest in developing for the Ninja Forms plugin and add-ons. Most of the Codex documentation provided here is applicable, but due to updates of the plugin and add-ons please be aware that you may find some outdated material that will need to be adapted for use with Ninja Forms in its current, more modern, state. The code here is provided as a courtesy to you but is considered as-is, and unfortunately we aren't able to provide assistance with any custom development. We are hoping to add updates to the resources provided here in the future.