Resolve a few property clashes in help xmls

Thanks! (!1)

resources/doc/help_dev.xml

@@ -744,12 +744,12 @@ their own simulation software. It showcases all panels and lists their options.
 				</parameter>
 				<help>&lt;code&gt;key=&quot;FILTER&quot; type=&quot;selector&quot; editable=&quot;false&quot;&lt;/code&gt;</help>
 			</parameter>
-			<parameter label="TEXTMODE" type="selector">
+			<parameter key="TEXTMODE" label="No dropdown, mandatory:" type="selector">
 				<parameter key="%::TEXTMODE" type="text" optional="false" template="true">
-					<help>If no &amp;lt;option&amp;&gt; dropdown values are given, a simple text field is displayed.</help>
+					<help>If no &amp;lt;option&amp;gt; dropdown values are given, a simple text field is displayed.</help>
 				</parameter>
 			</parameter>
-			<parameter label="TEXTMODE2" type="selector" placeholder="&lt;ID&gt;">
+			<parameter key="TEXTMODE2" label="Placeholder text:" type="selector" placeholder="&lt;ID&gt;">
 				<parameter key="%::TEXTMODE2" type="text" template="true">
 					<help>&lt;code&gt;type=&quot;selector&quot; placeholder=&quot;true&quot;/code&gt;</help>
 				</parameter>