Glad I have seen this question that you have posted.
As I have reviewed, when you say transfer. Were you referring to a Bank Transfer type of transaction?
If yes, then this will not show up on any Profit and Loss Account as this will only affect Balance Sheet/ Bank accounts.
As profit and loss will only report Income and Expenses of the business. Currently the filter ability of the Profit and loss (Summary & Detail) are Distribution Account, Name,Customer, Employee, Supplier and Payment Method.
There is also one possible solution that you can use so you will have a Profit and Loss that will only show up transactions that you wish to. By adding Class or Location, will give you an option to run report Profit and Loss by Class or by Location.