Act2 | Not just a theme but a powerful framework for your HubSpot website
HubX | Copy modules and groups between templates in the new HubSpot Design Tools
Coscopy | Copy drag-and-drop modules and groups in HubSpot old Design Manager
VIDEO: Removing the gutter between columns
If you add the column-no-gutter class to a group, it will remove the horizontal margin between its DIRECT child columns. As an example, please see the four columns on the contact page here.