Features:

✯ Adding tooltips for Attributes on the Product and Comparisons pages
✯ Currently only backend, frontend for default theme will be added soon
✯ Support of HTML-contents in tooltips (text, images, links, etc.)
✯ Support Multi-language
✯ English, Russian and Ukrainian translations included.

✯ Automatic install, not need to manually edit the database
✯ Compatibility with Opencart 2.3.x
✯ No change core files
✯ VQMOD required

Note: Module automatically creates additional field "smk_tooltip" in the DB table oc_attribute_description after install.