In PP, the performance metrics defined at Securities Account level are the IRR and the TTWRR. Those you can definitely get for each Securities Account.
For individual security there are IRR, TTWRR and also the “absolute performance %”. And if you have a Security A held across several Securities Accounts you can restrict the performance of Security A to the account of your choice.
But the “absolute performance %” is not defined at Securities Account level.
Look at Reports, Performance, Dashboard. You can add widgets with key indicators for each security account data series. Maybe @AndreasB can give us some insight why we can’t just filter the whole dashboard by portfolio and reference account.