To make a claim for Pension relief, you first need to add the Pensions & Benefits Page. If you have not done this already, you can do this page by clicking the + NEW PAGE nutton on the left of the screen:
Then click SELECT:
Once the page has been added, you need to click the + GROUP button in the Expenses section:
Next click PENSION and then click SAVE:
Once you had done that, click + ADD:
You should then see a drop down list. Please select the relevant category from the list shown.
Please see pages 10 & 11 of the HMRC Tax Return Notes for guidance: