Doing is is not extensible and is also inconsistent i.e. we use one pattern for gridArgs and something different for everything else. I think we should use the gridArgs pattern as the best practice. How about we do this:

var filesView = new FilesView({
    dialogArgs: { templateString: dialogArgs },
    moveToTrashArgs: { templateString: moveToTrashTemplate },
    ...
    gridArgs: {type : "myFiles",hideSorter:true,hidePager:true}
});