VERIFIED SOLUTION i

How to - Can you add symbols to the new layout designer programmatically as you could with the previous layout designer?

Products Affected: MapInfo Pro
In the previous layout designers you would edit the Workspace in a text editor and create new points/symbols as per the example below:
 
Set Map Layer 0 Editable
Create Point (-1.842227,53.165504)
    Symbol (44,16776960,12)

This is still possible using the same method in the new layout designer.

The newer version of the layout designers refers to the layout used in the x64 versions of MapInfo Pro ®.
UPDATED:  September 4, 2017