Execute ViewObject with Parameters at JSF Page Load?  JSF/ADF/BC 10.1.3

This 'should' be a simple problem, but I'm not seeing an answer, no doubt because I'm not searching for the right thing.
I have a page that has a grid populated by a view object that has a couple of named parameters. I have the values stored for the parameters based upon actions the user has already taken before they navigate to this page. I need to pass the parameters to the view object and open the query up without any user intervention, preferable before (or at) page load.
I see I can drag an 'ExecWithParams' from the data control pallette, but it looks like it would default to having the user enter the parameter values, which is what I'd like to avoid.
In a previous life I had events available like 'OnCreate' where I'd put code like this, but I'm still learning to think in JSF/Java.

Ok, now I see how it's supposed to work. Pretty straightforward if you know where to look. It raises another question for me though...
In my process, I've got the user logging in, at which point a series of user preferences are extracted from the database. My first thought was to store them somehow in the users' session, but I didn't see a way to do that, so I created my own implementation of it with a bunch of getter/setter methods, inside the data model of the project. Unfortunately, I can't see a way to surface them without putting them in the ApplicationModule and adding them to the client interface. In the interim, I came across some utilities methods (written by Steve Muench and Duncan Mills) called ADFJSFUtils and JSFUtils. In the JSFUtils there's this method:
void storeOnSession(String key, Object object) {
FacesContext ctx = getFacesContext();
Map sessionState = ctx.getExternalContext().getSessionMap();
sessionState.put(key, object);
I assume it's designed to work in the ViewController project (since I haven't been able to call it from my Model project) .
This has been a long way to ask: What's the best/recommended way to store variable values for the users' session is a way that I can access them for binding to view objects (as you described above)? I'd love to just implement the storeOnSession right in my appplication module, but it lacks the context, apparently.

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