Not at this moment in time. There’s more about this in this thread: The online accounts and Company Tax Return service is closing
In short, it depends.
If it’s just the calculation within QuickFile (the estimated one), you can set add-backs for nominal codes, so they’re added back into the calculation. Likewise, you can do it for deductions, too.
If it’s more of the calculation at year end, it may depend on your accountant. It may be the case of using different nominals for different income (maybe even as simple as having a separate nominal for “non-CT income” or something similar), or you could use project tags which can be applied to invoices. This would generate a profit and loss based on everything with the same project tag, but it would allow your accountant to single these out when preparing the accounts.
Hope that helps!