or 
This button toggles the visibility state of the simulation state-sign icons like the following: or
These icons will be displayed under a unit procedure’s icon, during simulation and while simulation is paused. They indicate the current simulation state of that unit procedure in comparison to the current simulation stop location (e.g. has already been simulated or not visited yet, or is currently being simulated, or has been simulated but final solution not yet known as it is in a loop, etc.).
Shortcuts
| Simulation Control Toolbar Button |  |
See Also: