Details for the installation of the Ometria extension for Magento 2 can be found in the file of the github repository, available here:

Once installed, the extension can be configured by navigating to:

Stores > Configuration (as shown below)

On this page, select Ometria from the left menu list and click on Analytics Settings

Complete the form, pictured above. You will need the following information;

Ometria Site Identifier and Ometria API Private Key

Both values will be provided with this by your Customer Success Manager.

Click Save Config and configuration is now complete.