Nikon D7000 - multi-focus?

I'm not familiar with proper verbiage but do you know if Nikon D7000 has a multi-focus. What I'm looking for is to shoot a portrait of a family with a 18-105mm lens and I would like to have all family member faces in focus with a decent depth of field (maybe shooting at least at 50mm).

If that option is not available on this camera - is there any other at the same price level that does have that option?

One can check the features and reviews of this camera here

Nikon D7000 16.2MP DX-Format CMOS Digital SLR with 18-105mm f/3.5-5.6 AF-S DX VR ED Nikkor Lens

http://www.amazon.com/...B0042X9LCO

Yes it can use multi focus but multi focus is somehow a lie, but what you have to understand is the lens can't focus everywhere at the same time, it's impossible. The camera will chose multi focus area for it's focus then it will use algorithm to nail the better spot to make it's focus on.

I think you should learn how the aperture affect the depth of field.

http://www.dofmaster.com/dofjs.html

What you need to do is use an aperture, something like f11 which will increase the depth of field, but make sure the background is far enough away to maximise blur.

At least there's a DOF preview button on the d7000 which could be useful for this.

A depth of field scale on the lens would be helpful but lenses rarely come with these now.

It isn't possible to focus on more than one point in an image. Put the camera on a tripod and shoot at f/8 or f/11.

Shoot with a small aperture to increase depth of field (DOF). Somewhere in the f/11 to f/13 area. Don't make your aperture smaller than f/16 (don't use f/16 to f/22 range) as that will blur the image due to diffraction issues. Read up on depth of field and do a few experiments to get a feel of what the aperture setting will do.

Separate your camera as much as possible from the subject(s). This will help with the DOF.

You may have been looking at focus stacking as a way to artificially increasing the DOF in post processing. This can't be done shooting people. The subject matter must be still. Moving people will destroy a focus stack.