creo4 config.pro option documentation for: 3D_HANDLE_LOOK 
sim_sturm_sequence
Category: Creo Simulate
Description: Run the Sturm sequence test for a modal analysis. By default, the solver automatically decides when to perform the Sturm sequence test.
Values: never, default, always
Default Values: default
class="uicontrol">Dimension
ribbon tab, when you create a dimension or want to show the dimension for the first time.
Default and Available Settings:
Yes* - The Default
checkbox for both primary and dual dimension tolerance values is selected.
No - The Default
checkbox for both primary and dual dimension tolerance values is not selected.
Use this configuration option to set the default number of decimal places for the primary and dual tolerance values to be the same as the number of decimal places of the dimension nominal value, when you create a dimension or want to show the dimension for the first time.