There a way to include a received bonification transaction for a security? In Brazil is possible to receive securities as bonification with a zero cost.
Even though you did not pay for these shares, I would recommend to book the transaction with the current share price. Portfolio Performance will then calculate the performance from this day/price on.
I agree with Thomas here. You can lokk at the situation the way that you got an amount of money from somewhere. With that money you purchased securities. To reflect that best in PP you book the security as an inbound delivery.
There are some German threads on that as well so you are not alone with that procedure. I myself get securities from money I never saw. I book it the same way as suggested.
Have a good time