Q. How to change the floor height that is associated with a floor plan from PlanWin?
Ans.- Open the model and go to Workspace and choose a plan as shown below:
In that plan, you need go to menu View> Plan Properties.
On clicking on "Plan Properties", a new window pops-up and you can edit height of floor level there as shown below. You can edit height of floor level associated with than plan from there.
You need to finalise the plan in order to get it reflected in 3D model.