Should we add Chromosome 47 to the Human Genome?

Recent research has indicated that adding a missing gene to a separate chromosome in stem cells is “probably” the safest means of gene repair. This extra cromosome could be a repair kit for genetic diseases… but?
Try this article as a referance.
toni.marshall@newscientist.com.
Some researchers regard artificial chromosomes as the most promising method for germ-line genetic engineering of humans (New Scientist, 3 October 1998, p 24). One day our children might have 47 chromosomes.
Chromosome 2 of the human genome is actually a fusing of 2 chimp chromosomes & they combined are almost a duplicate of human chromosome.

Genetic Testing Kit