cms/components/com_content/forms/article.xml

<?xml version="1.0" encoding="UTF-8"?>
<form>
	<fieldset addfieldprefix="Joomla\Component\Categories\Administrator\Field">
		<field
			name="id"
			type="hidden"
			label="COM_CONTENT_ID_LABEL"
			size="10"
			default="0"
			readonly="true"
		/>

		<field
			name="contenthistory"
			type="contenthistory"
			label="JTOOLBAR_VERSIONS"
			data-typeAlias="com_content.article"
		/>

		<field
			name="asset_id"
			type="hidden"
			filter="unset"
		/>

		<field
			name="title"
			type="text"
			label="JGLOBAL_TITLE"
			size="30"
			required="true"
		/>

		<field
			name="alias"
			type="text"
			label="JFIELD_ALIAS_LABEL"
			description="JFIELD_ALIAS_DESC"
			hint="JFIELD_ALIAS_PLACEHOLDER"
			size="45"
		/>

		<field
			name="articletext"
			type="editor"
			label="COM_CONTENT_FIELD_ARTICLETEXT_LABEL"
			hiddenLabel="true"
			buttons="true"
			filter="JComponentHelper::filterText"
			asset_id="com_content"
		/>

		<field
			name="state"
			type="list"
			label="JSTATUS"
			class="form-select-color-state"
			size="1"
			default="1"
			validate="options"
			>
			<option value="1">JPUBLISHED</option>
			<option value="0">JUNPUBLISHED</option>
			<option value="2">JARCHIVED</option>
			<option value="-2">JTRASHED</option>
		</field>

		<field
			name="featured"
			type="list"
			label="JGLOBAL_FIELD_FEATURED_LABEL"
			default="0"
			validate="options"
			>
			<option value="0">JNO</option>
			<option value="1">JYES</option>
		</field>

		<field
			name="featured_up"
			type="calendar"
			label="COM_CONTENT_FIELD_FEATURED_UP_LABEL"
			translateformat="true"
			showtime="true"
			size="22"
			filter="user_utc"
			showon="featured:1"
		/>

		<field
			name="featured_down"
			type="calendar"
			label="COM_CONTENT_FIELD_FEATURED_DOWN_LABEL"
			translateformat="true"
			showtime="true"
			size="22"
			filter="user_utc"
			showon="featured:1"
		/>

		<field
			name="catid"
			type="categoryedit"
			label="JCATEGORY"
			extension="com_content"
			required="true"
		/>

		<field
			name="created"
			type="calendar"
			translateformat="true"
			filter="unset"
		/>

		<field
			name="created_by"
			type="text"
			filter="unset"
		/>

		<field
			name="created_by_alias"
			type="text"
			label="JGLOBAL_FIELD_CREATED_BY_ALIAS_LABEL"
			size="20"
		/>

		<field
			name="note"
			type="text"
			label="COM_CONTENT_FIELD_NOTE_LABEL"
			size="40"
			maxlength="255"
		/>

		<field
			name="version_note"
			type="text"
			label="JGLOBAL_FIELD_VERSION_NOTE_LABEL"
			maxlength="255"
			size="45"
		/>

		<field
			name="publish_up"
			type="calendar"
			label="JGLOBAL_FIELD_PUBLISH_UP_LABEL"
			translateformat="true"
			showtime="true"
			size="22"
			filter="user_utc"
		/>

		<field
			name="publish_down"
			type="calendar"
			label="JGLOBAL_FIELD_PUBLISH_DOWN_LABEL"
			translateformat="true"
			showtime="true"
			size="22"
			filter="user_utc"
		/>

		<field
			name="language"
			type="contentlanguage"
			label="JFIELD_LANGUAGE_LABEL"
			>
			<option value="*">JALL</option>
		</field>

		<field
			name="tags"
			type="tag"
			label="JTAG"
			multiple="true"
			size="45"
		/>

		<field
			name="metakey"
			type="textarea"
			label="JFIELD_META_KEYWORDS_LABEL"
			rows="5"
			cols="50"
		/>

		<field
			name="metadesc"
			type="textarea"
			label="JFIELD_META_DESCRIPTION_LABEL"
			rows="5"
			cols="50"
			maxlength="160"
			charcounter="true"
		/>

		<field
			name="access"
			type="accesslevel"
			label="JFIELD_ACCESS_LABEL"
			filter="UINT"
			validate="options"
		/>

		<field
			name="captcha"
			type="captcha"
			label="COM_CONTENT_CAPTCHA_LABEL"
			validate="captcha"
			namespace="article"
		/>
	</fieldset>
		<fields name="images">
		<fieldset name="image-intro">
			<field
				name="image_intro"
				type="media"
				schemes="http,https,ftp,ftps,data,file"
				validate="url"
				relative="true"
				label="COM_CONTENT_FIELD_INTRO_LABEL"
			/>

			<field
				name="image_intro_alt"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_ALT_LABEL"
				size="20"
			/>

			<field
				name="image_intro_alt_empty"
				type="checkbox"
				label="COM_CONTENT_FIELD_IMAGE_ALT_EMPTY_LABEL"
				description="COM_CONTENT_FIELD_IMAGE_ALT_EMPTY_DESC"
			/>

			<field
				name="image_intro_caption"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_CAPTION_LABEL"
				size="20"
			/>

			<field
				name="float_intro"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_CLASS_LABEL"
				size="20"
				useglobal="true"
				validate="CssIdentifier"
			/>
		</fieldset>
		<fieldset name="image-full">
			<field
				name="image_fulltext"
				type="media"
				schemes="http,https,ftp,ftps,data,file"
				validate="url"
				relative="true"
				label="COM_CONTENT_FIELD_FULL_LABEL"
			/>

			<field
				name="image_fulltext_alt"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_ALT_LABEL"
				size="20"
			/>

			<field
				name="image_fulltext_alt_empty"
				type="checkbox"
				label="COM_CONTENT_FIELD_IMAGE_ALT_EMPTY_LABEL"
				description="COM_CONTENT_FIELD_IMAGE_ALT_EMPTY_DESC"
			/>

			<field
				name="image_fulltext_caption"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_CAPTION_LABEL"
				size="20"
			/>

			<field
				name="float_fulltext"
				type="text"
				label="COM_CONTENT_FIELD_IMAGE_CLASS_LABEL"
				size="20"
				useglobal="true"
				validate="CssIdentifier"
			/>
		</fieldset>
	</fields>
	<fields name="urls">
		<field
			name="urla"
			type="url"
			label="COM_CONTENT_FIELD_URLA_LABEL"
			validate="url"
			filter="url"
			relative="true"
		/>

		<field
			name="urlatext"
			type="text"
			label="COM_CONTENT_FIELD_URLA_LINK_TEXT_LABEL"
			size="20"
		/>

		<field
			name="targeta"
			type="hidden"
		/>

		<field
			name="urlb"
			type="url"
			label="COM_CONTENT_FIELD_URLB_LABEL"
			validate="url"
			filter="url"
			relative="true"
		/>

		<field
			name="urlbtext"
			type="text"
			label="COM_CONTENT_FIELD_URLB_LINK_TEXT_LABEL"
			size="20"
		/>

		<field
			name="targetb"
			type="hidden"
		/>

		<field
			name="urlc"
			type="url"
			label="COM_CONTENT_FIELD_URLC_LABEL"
			validate="url"
			filter="url"
			relative="true"
		/>

		<field
			name="urlctext"
			type="text"
			label="COM_CONTENT_FIELD_URLC_LINK_TEXT_LABEL"
			size="20"
		/>

		<field
			name="targetc"
			type="hidden"
		/>
	</fields>
	<fields name="metadata">
		<fieldset
			name="jmetadata"
			label="JGLOBAL_FIELDSET_METADATA_OPTIONS">

				<field
					name="robots"
					type="hidden"
					label="JFIELD_METADATA_ROBOTS_LABEL"
					filter="unset"
					>
					<option value="">JGLOBAL_USE_GLOBAL</option>
					<option value="index, follow"></option>
					<option value="noindex, follow"></option>
					<option value="index, nofollow"></option>
					<option value="noindex, nofollow"></option>
				</field>

				<field
					name="author"
					type="hidden"
					label="JAUTHOR"
					filter="unset"
					size="20"
				/>

				<field
					name="rights"
					type="hidden"
					label="JFIELD_META_RIGHTS_LABEL"
					filter="unset"
				/>

		</fieldset>
	</fields>
</form>