Create Craft CMS fields on the fly while designing field layouts
Craft\QuickFieldPlugin
class to spicyweb\quickfield\Plugin
Craft\QuickFieldController
class to spicyweb\quickfield\controllers\QuickFieldController
Craft\QuickFieldController::actionGetFieldSettings()
to spicyweb\quickfield\controllers\QuickFieldController::actionLoad()
Craft\QuickFieldService
classCraft\QuickFieldVariable
class