const { createHigherOrderComponent } = wp.compose; const { InspectorControls } = wp.blockEditor; const { PanelBody } = wp.components; const withMyPluginControls = createHigherOrderComponent( ( BlockEdit ) => { return ( props ) => { return ( <> My custom control ); }; }, 'withMyPluginControls' ); wp.hooks.addFilter( 'editor.BlockEdit', 'my-plugin/with-inspector-controls', withMyPluginControls );