Implements a display with a clock, when someone execute forward steps, for example if you execute 500000 steps, display says: “Execution time 00:01:05”
Do you mean the display should show the wall-clock time used to perform the simulation or that it should display some interpretation of the model-time?
The first could be done by adding a message to the status bubble at the lower-left corner (and make it persist).
The latter would require users to input the interpretation (e.g., 1 time unit = one second or one millisecond)
Yes, I mean show a wall-clock time used to perform the simulation. For example if execution time takes 1 , 5 or 10 minutes, this is shown on the status bubble or another display.