Non-linear Large Deformation and Plate Support

Hello,

I'm testing on a complex structure under a large load with will involve the AnalysisNonlin WIP.

1. The doc here does not provide enough explanation for the different parameters. Is there anywhere else I can look into it?

https://manual.karamba3d.com/3-in-depth-component-reference/3.5-alg...

2. When loading, some part of the structure starts to touch the ground (not touching when not loading). Is there a way to add a "plate support" or "support plate" so that those parts become supports during the computation?