In principal, the law of energy conservation prevents the universe from altering its energy/mass, ignoring the possible violations introduced by virtual particles, but within a local frame of reference, and assuming that “life” or biological activity isn’t uniform across the universe, of which we have no evidence to date indicating such, I would be hesitant to make a make a firm prediction of what possibilities that could be observed if such actions taken. That being said, I think the chief obstacle, after the initial recruitment, would be the timing.

But on the other hand, the laws of both energy conservation and thermodynamics are essentially mathematical laws—they depend relatively little on the specific details of our universe. Just about the only specific detail that's important is time-translation symmetry: physics doesn't change with time--physics today is the same as it was yesterday and as it will be tomorrow. That observation leads, amazingly enough, to energy conservation: energy/mass cannot be created or destroy; it can only change forms or be transferred between objects. So, getting all biological entities in our universe to move at the same time, in the same direction could lead, in our local frame of reference, to a large mass to energy transfer producing enormous heat putting our global warming issues on the back burner, in a manner of speaking.

Miles.
PS if this makes sense to anyone please keep it to yourself.