What is proprietary product offerings and what is affiliate company mutual fund in the example below?

Chu manages a portfolio for XA bank. Everytime he is successful in assisting in the sales process and generation of assets under management, he receives some additional compensation from XA bank. The assets in question will be reinvested in proprietary product offerings such as affiliate company mutual funds.

(This example is taken from Schweser Notes level I)

another question, he is a portfolio manager, by what way he can assist in the sale process and generation of assets under management of XA bank? give some examples?