This whole function is pretty hard to follow. If you find that you want to abbreviate `'show_mobile_worker_field'` to `'smwf'` and `context` to `ctxt` to keep from typing those out too many times, you should consider changing the code so as to be less repetitive. For example, it'd be much clearer what's going on, I think, if you made a bunch of variables like `select_mobile_worker_field` (instead of `ctxt['smwf']`) and then have the last line be

```python
self.context.update({
    'select_mobile_worker_field': select_mobile_worker_field,
    'select_group_field': select_group_field,
    ...
})
```