NOTE:
Activate Grid Container before import the templates to ensure it does not show up blank.

Activate Elementor Grid Container
  1. Go to Elementor – Settings – Features
  2. On Grid Container select Active
  3. Click Save Changes to update the settings
Add-On: Import templates
  1. Go to Templates (below Elementor link)
  2. Click Import Templates
  3. Click Choose File and find the add-on template file (.JSON file)
  4. Click Import Now once imported page will refresh with the template on the list below