Combine multiple designs by copy-pasting all elements into one design

Copy all elements from each design into a single design so the combined layout lives in one place.

1. Room names can be edited by clicking inside the room.

   ✓ ১৯ অক্টোবৰ, ২০২৬ তাৰিখে প্ৰডাক্টত পৰীক্ষা কৰা হৈছে