As we know Staad Pro does not design load bearing structure, now i tried to make a simple model which would  reflect the beam behaviour on openings (windows and doors).Wall blocks are 230mm thick i decided to use 100mm plate thickness so as to attract less moment in wall,the building does not have columns but i have introduced small columns so as i could be able to open RCDC

Please cross check my model and give me your opinions, the aim was to design the beam on openings.

communities.bentley.com/.../63057.Structure1.STD