IPV for Projects

Hi, would like to clarify functionality on how IPV comes to projects:

1. For AP matched to POs with destination type Expense:

a. My understanding is IPV will come to projects and there is no setup to say whether it should or should not come to projects, is this true?

b. In 11i the IPV would be combined with the invoice amount and one expenditure item is created in projects for total invoice amount; in other words, there may be two AP Distribution lines one for invoice amount $100, and one for IPV $20, but projects will get just one expenditure item for $120, with transaction source "AP INVOICE".