Plugin for adding custom property editors on the inspector. [EditorInspectorPlugin] allows adding custom property editors to [EditorInspector]. When an object is edited, the [method _can_handle] function is called and must return [code]true[/code] if the object type is supported. If supported, the function [method _parse_begin] will be called, allowing to place custom controls at the beginning of the class. Subsequently, the [method _parse_category] and [method _parse_property] are called for every category and property. They offer the ability to add custom controls to the inspector too. Finally, [method _parse_end] will be called. On each of these calls, the "add" functions can be called. To use [EditorInspectorPlugin], register it using the [method EditorPlugin.add_inspector_plugin] method first. $DOCS_URL/tutorials/plugins/editor/inspector_plugins.html Returns [code]true[/code] if this object can be handled by this plugin. Called to allow adding controls at the beginning of the property list for [param object]. Called to allow adding controls at the beginning of a category in the property list for [param object]. Called to allow adding controls at the end of the property list for [param object]. Called to allow adding controls at the beginning of a group or a sub-group in the property list for [param object]. Called to allow adding property-specific editors to the property list for [param object]. The added editor control must extend [EditorProperty]. Returning [code]true[/code] removes the built-in editor for this property, otherwise allows to insert a custom editor before the built-in one. Adds a custom control, which is not necessarily a property editor. Adds a property editor for an individual property. The [param editor] control must extend [EditorProperty]. There can be multiple property editors for a property. If [param add_to_end] is [code]true[/code], this newly added editor will be displayed after all the other editors of the property whose [param add_to_end] is [code]false[/code]. For example, the editor uses this parameter to add an "Edit Region" button for [member Sprite2D.region_rect] below the regular [Rect2] editor. [param label] can be used to choose a custom label for the property editor in the inspector. If left empty, the label is computed from the name of the property instead. Adds an editor that allows modifying multiple properties. The [param editor] control must extend [EditorProperty].