You need to ensure you are running the latest version of the software. To update close Absolute and run the link www.absolutetax.co.uk/install/aall.exe. Once updated when you go from Accounts to Tax it will open the Capital Allowance window. You need to click to add a new asset and when it opens the input screen you need to change the rate to 130% and then show the value in the additions box and then click ok.