Go to Forms view, then in the bottom left corner click on the middle tab (Forms) check if you see T1198 listed - if not listed, on the bottom of the list click on Form lookup... then on popup window either search or scroll on the list of forms, double click on T1198 and it will be added for you. Then you will find yourself in my situation that you cannot put 2024 in the "Year of payment" field - only 0 to 2023 ...
