To Specify Walk or Fly Settings

Click Visualize tab Animations panel Walk and Fly drop-down Walk and Fly Settings. Find
In the Walk and Fly Settings dialog box, under Settings, click the button next to a display option.
In the Display Position Locator Window option, clear the check box if you do not want to display the window.
Note: If performance slows when this window is displayed, you may want to close the Position Locator window.
In the Current Drawing Settings section, under Walk/Fly Step Size, enter a number to set the step size in drawing units.
In the Steps Per Second option, enter a number between 1 and 30.
Click OK.