Via the sidebar on the left, click on a job opening under 'Your jobs' or head to the 'Jobs' page to navigate to the specific job that you want to add scorecards to.

Click on the gear icon in the top right corner to navigate to the job settings.

Select the hiring stage you want to add a scorecard to.

To add a scorecard, click ‘Insert template’.

In the dropdown menu, select one of your existing scorecard templates or select ‘No template’ to create a new scorecard from scratch. That's it: you have added a scorecard to the job stage.