Thank you for your post.
At this time, it is not possible to have a picture taken with the built-in camera to automatically be put into a Container field. I would encourage you to enter this suggestion into our Feature Requests web form at:
The entries into this web form are monitored and read by members of Development and Product Management where they are discussed and considered for future releases.
Although I could copy your post and paste it into the web form, there are a few additional questions asked that only you can answer.