Gridding specific offset connections

Hi,

I have received a sim input file with a 2D grid that has a couple of elements outside the main grid space and such elements have multiple connections with specific elements of the main grid.

Simulation works fine but as I need to change certain dimensions and geometries of the grid I need to be able to build a similar one.

I am enclosing a simplified version of what I have. Elements A and B are separated from main mesh and may be in a different cartesian plane.

I cannot see how MESHMAKER can define such offset elements. Is PyTOUGH an option?