Yeah.. How about we leverage some of [the vocabulary of Marionette](http://lightsofapollo.github.io/marionette_js_client/api-docs/classes/Marionette.Client.html#method_findElement) and provide sensible defaults for the common case:

```javascript
{
  "oneElement": "#selector",
  "manyElements": { "query": ".selector", "multi": true },
  "oneVerboseElement": { "query": "#selector-2", "method": "css", "multi": false },
  "manyVerboseElements": { "query": ".selector", "method": "css", "multi": true }
}
```