creo4 Drawing Setup option documentation for: DEFAULT_ANSI_ORD_DIM_ALIGNED 
(Also MBD)
witness_line_intersection
Determines if intersection witness lines will be enabled for new dimensions that reference entity intersections. This Detail option does not affect existing
dimensions.
Default and Available Settings:
no* - Disables intersection witness lines for new dimensions.
yes - Enables intersection witness lines for new dimensions.