YouTube Importer plugin
This plugin periodically checks for the availability of new videos in the YouTube channel(s) configured, and imports them as new content items in the associated category(es), adds the title and description, and publishes it according to your settings. The plugin action is triggered by front-end user activity. More visitors you have, more precise the timing is.
Bulk Related Product Manager for VirtueMart
A little component to manage related products in bulk easily for the current branch of VirtueMart.
You can filter for Category and manufacturer to select the target products, then select from the list the products you want to manage in the first step. In the second step you can select the related products, and you can save the obtained combination to be reused.
On the third and last step you can select what to happen with the combinations you created in the previous steps: