Are you asking how to make structural headers with metal studs? There are several methods, here is a fairly simple one.
Take 2 studs and lay them face to face like so [ ]
Take 2 pieces of track, attach one trapping the top of the studs, the other traps the bottoms.
The wider the studs, the greater the span strength. The wall must be 3 1/2" or greater to accommodate the studs.
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