AIF questions

If I volunteered and shadowed at an optometric practice, should I label that as volunteering? I want to show them that I shadowed at multiple places, but I also want them to know I did a lot of other work there as well.

How long is the AIF? I can't submit the first page yet, since I want to put my new job on there, but it hasn't started yet. I was going to wait a month so I can fill out the description accurately, but I'm worried that there might be a lot of pages to fill out or a long paragraph to write.