You can achieve this with the built in functionality of Joomla.
Create a Category Blog Menu Item and deactivate title under the options tab.
While creating an article, write first your fake title and maybe a short intro text.
Then use the "read more" button on the bottom of the editor to insert the read more button (displayed as line in the editor).
You could try the "spacer" field type and see if that's good enough for your purposes:
<field name="example_spacer" type="spacer" label="Text you want here" />
Then put it in your XML file following the field you're wanting the extra text for. Add CSS to taste.
That might work out for you.
There are a couple of alternatives.
You can add styles or a style sheet into the administrator using the technique here:
How to add custom JS/CSS file, without modifying the template (from extension)?
Using $app->isClient('administrator') will allow you to add css just to the administrator. If you really want to load only on your page you can ...
I'm not sure if it will solve the problem but it seems like you downloaded an outdated version of VirtueMart. Please, try downloading this one directly from Joomla Extensions: https://extensions.joomla.org/https://extensions.joomla.org/extension/virtuemart/
Last update was June 18, 2020. Version: 3.8.4
Create an extension plugin with onExtensionAfterSave event.
defined('_JEXEC') or die;
class PlgExtensionExample extends CMSPlugin
public function onExtensionAfterSave($context, $table, $isNew)
// Check that we're modifying the correct component.
if ($context !== '...
// Import `ComponentHelper` class.
// Get all params of a specific component.
$params = ComponentHelper::getParams('com_yourcomponent');
// To get the value of the param.
Although I accepted Neil's answer, I found an easier method to do this. But my method may not appeal to many since it requires changing XML files of default Joomla installation. Perhaps there's a way to write a custom XML to override the settings selectively in the default XML.
Article form settings are available in these files:
Administrator menu items can be added to manifest file's <administration> section: