You can't disable anything, but if all you want to do is build models and error check them, "DON'T" click the "double running man" button. Instead use the button just to the left, the red circle with the white "X". This just runs the Error Checker.
After Error Checking, you can setup static load cases from the "Analysis Button" on the Main Menu. Again, "DON'T" click the "running man" button here either.
The "running man" button will start the analysis and decrement the run counter.
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Regards,
Richard Ay - Consultant