I have to agree on using manual settings.
I was disappointed with auto settings for any movement.
So I played with fixed shutter of at least 125th or higher.
In my case I shoot fast moving kittens and puppies and no auto setting worked.
And I do need to use flash as fill light.
Do a lot of playing with the manual settings.
And you may need to adjust the images later in a photo editing program.
Sorry I thought both questions were answered?
Have you looked at the help site and the WHM videos ?
And remember your reseller domain space is seperate and equal to your reseller hosting space,
so you get twice as much space as the plan indicates.
In WHM ( Web Host Manager )
you can create packages of space and bandwidth
you can also create feature lists and add that list to a package to limit what their cpanel sees.
Sub Domains do not get their own cpanel
they are just a redirection to a folder with out any limits!
Use extreme caution in giving a sub domain on your reseller domain to anyone.
They can use as much space as you have left.