The volume shape of the field is meant to cope with this, then there’s an option for Markers to “Ignore Fields”.
But there is currently no option similar to light linking where you get complete control over which Marker is affected by which field.
You can make the ground simulated too, and give it some translate stiffness and damping. See this one for example.
If you make a grid of several smaller ground planes, you can emulate the appearance of a soft deformable ground.
The next release will feature “Soft Contacts” which would make this a breeze.
Of course.