Beam connection

Simulation
1

In Solidworks simulation, can you please tell me:

  1. How to make a "connection" between beam elements?; despite the fact that the 3D model already gives the points of contact

  2. Fill in the mechanical properties of wood, to obtain relevant results – Orthotropic material? – and how to orient it according to the length of the beam

  3. Finally, how to force the "large displacement" option on a "beam" calculation