At this point you cannot input custom wind pressure coefficients to the LBT components. Right now Ladybug uses a simplified method in EnergyPlus that approximates your building geometry as a bounding box and solves the wind pressure coefficients for this simpler geometry.
For my students, I usually reccomend that they check EP’s autocalculations by mapping the simulated wind pressure gradient to the facade, using the AFN Linkages Node 1 to Node 2 Pressure Difference output (see below). For more complicated geometries you will clearly see where the bounding box assumptions begins to fail.
