Select your workspace.

Click the 'Templates' button in the left-hand menu.

In 'Tag Templates', Click 'Search Gallery'.

In the search field top right, search 'Seeka'

Select the 'Sevenrooms install'.

Click 'Add to workplace'

Then click 'Add' on the pop-up.

Select 'Tags' in the left-hand menu.

Select 'New'.

Click anywhere in the tag configuration window.

Select Sevenrooms install from the list.

Keep this window open, go to Seeka settings, and select API from the middle menu.

Copy and paste the Instance ID and Public key from Seeka into GTM.

Name and save the tag.

Click anywhere on the Triggers section.

Select 'Initialization - All Pages'.

Hit 'Save'.