Several amateur questions regarding A6600

[DanDude]

Hi All!

I have just purchased an A6600 and I have some questions (I would like to use auto settings as much as possible):

1. Is there anyway to define date-based filenames for media (picz and videoz)?

2. During filming, people in the background are not focused, only who is in the foreground. What do I need to set to make everything focused like with other cheap cameras?

3. When taking a photo I get the foreground focused, background blurry effect which is cool, but what do I need to do to make everything focused?

4. What is the recommended ISO range for filming if I do not want to change it all the time? I have concluded that the default 500-6400 makes rather dark images for me.

Thanks in advance!

Daniel