The counterweight position can be changed via the Rope Wizard. The Rope Wizard gets started either via the traction machine, the counterweight, the pulley or the pulley beam properties.
Step 1: Start the Rope Wizard:
Step 2: The counterweight position can be changed in step 4 of 5 in the Rope wizard:
Close the Rope Wizard when you are done.
Step 3: The counterweight is now on the left side.