Click on "Setup Floorplan
"flooding space forever" should be toggled off once Count of placers = zero.
1- Without an exit plan:
Click on "Set up agents"
Click on agents exit
Check time when all agents exit (Number of agents =0)
2- With an exit plan:
Click on "flooding space forever"
Wait till Count of placers = 0
Click on "flooding space forever" again.
Click on "Set up agents"
Click on agents exit
Check time when all agents exit (Number of agents =0)