creo4 Drawing Setup option documentation for: lead_trail_zeros_scope 
intersected_lines_delta
Sets the default length of intersecting projected contours of outlines beyond the point of intersection. The default value is the value specified for the
Detail option witness_line_delta.
_7_5_7_3_121_4_1_2" class="List_1"> dims* - The Detail option lead_trail_zeros controls
only dimensions.
all - The Detail option lead_trail_zeros controls
dimensions, hole parameters within hole notes and also all floating point parameters on a drawing, including parametric notes, view scale notes, tables, symbols, and cosmetic thread notes.