Enlargement is a possibility in God. It's also God's desire that everyone is enlarged. But enlargement is relative. It's dependent on the faith of the individuals in question. God has the capacity and ability to enlarge any man to whatever level he/she wants but God can only enlarge based on the capacity given to him by man. There are several keys that lead to enlargement but we will look at two here

First, in 2Kings 4vs 1-4, we see how that the prophet instructed the woman to increase her capacity for the enlargement/increment of the oil but as soon as the vessel finished, the oil stopped. The oil stopped not because there was no longer oil because it was not recorded that the oil finished but that it stopped, but because there was no vessel enough to receive the oil. Enlargement is faith dependent.

Isaiah 54:2-3 KJV

Enlarge the place of thy tent, and let them stretch forth the curtains of thine habitations: spare not, lengthen thy cords, and strengthen thy stakes; [3] For thou shalt break forth on the right hand and on the left; and thy seed shall inherit the Gentiles, and make the desolate cities to be inhabited.

This is God giving instruction for enlargement and the role that we must play in it. The second key to enlargement is praying Prayers that provoke enlargement. In 1 chronicle 4:10, Jabez prayed that God would Enlarge his coasts because beyond man's effort, it only takes God to enlarge a man. Job 12:23 declares that it is God that enlarges a nation, a life, a business, a ministry, a home, etc.