A trip across the boundary of his Reality!
One of his main bodies had to make this trip, and the body of Alexander was chosen in the end as his Universal Body and his other Human Body would remain to absorb the Shards of a Cosmic Primordial Heart and complete more Edicts respectively.
His clones could only utilize a portion of the power of the Primordial Eye and the Eye of Ruination, so any possible movements that dealt with the boundaries of a Reality had to be done with one of the bodies sharing Noah's Origin!
His Universal Body would absorb all the Shards of a Cosmic Primordial Heart he could as he went towards the number of a billion and above it, while the Edict that Halcyon had just forged in front of Noah's eyes would be what he tried to recreate next for himself if not just bookmark it in two weeks.
"Let's be productive…" His Universal Body laid down the commands as every piece of his soul and consciousness moved to accomplish their goals!