How to use title of the parent page as default value of a text field?

[texnixe]

Query language doesn’t work for default values (in most cases). You would have to create a new field type based on the text field with support for query language, similar to the example here ( )

Dynamic default number field

String templates aka query language are not supported for most default values. What you could do is create your own number field in plugin: PHP: Kirby::plugin('my/plugin', [ 'siteMethods' => [ 'getSeason' => function () { return 5; }, ], 'fields' => [ 'num' => [ 'extends' => 'number', 'props' => [ 'default' => function ($default = null) { return $this->toNumber($this->model->toSafeString($default) ?? ''); }, ] ] ] ]); JS: index.js panel.plugin("my/plugin…