Adding FB messenger possible?

Multi-Vendor
1

I’ve been doing a lot of learning and experimenting with this platform (MV 4.17.1). Most recently my vendors are not keen with the current message addon - it is so limited and lacks the simplest of features (attachments being the big one). Considering so many use FB messenger would the code below work if added to a products template to “message the vendor”?
If so, I’m not entirely sure what specific template or what line to place it on.

{if $product.vendor}
  <span class="vendor">{$product.vendor|escape}</span>
  <a href="https://m.me/{$product.vendor_id}" target="_blank">Contact Vendor</a>
{/if}
2

You can try to add this code using the hook products:options_advanced, just like the Message center add-on adds the Ask a question link on the product’s details page.