I would like to fill in the center of this medallion.

I could position a smaller version of the medallion in the center.

Instead, I merged the larger and smaller versions together.

How many loops are in Medallion 3? How many loops are in Medallion 6?
Again, I merged a smaller version of Medallion 3 with Medallion 6.

Now, how many loops?
Finally, I merged an open-sided knot section with Medallion 6.

How can I get more knotting in the center?