This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
You can, however, define parameters that will be passed as part of the request submit, and IIRC, that's just a matter of putting <f:param> children under an <h:commandButton> (or commandLink) and can be done with core JSF.
Getting the parameter itself in the action processor means having to dig into internal structures in a way that generally means you're not using JSF the way it was designed for. Use of parameters in well-designed JSF apps isn't unknown, but it's not all that common, since the backing beans and datamodels cover the most common situations without the need to get that complicated.
An IDE is no substitute for an Intelligent Developer.