Welcome to the Community, @20clear-eyes20-g.
I can provide some clarification about the bank transactions in QuickBooks Self-Employed.
Currently, expanding the characteristics of the transactions by adding more details is unavailable. In the meantime, you can utilize the Notes field to include information you need to the uploaded data from your bank (see screenshot below).
Thanks for your input on this feature. We'll continue to update the features in QuickBooks to serve you better, and this preference might be available in the future.
Meanwhile, I recommend the following resources for your reference about excluding transactions and how to handle duplicates:
If you have additional questions or concerns while working in QuickBooks Self-Employed, leave a comment below. I’ll be happy to help you out.