Settings for ECO route for double via, and via optimization.

set_route_zrt_common_options -post_detail_route_redundant_via_insertion medium
set_route_zrt_common_options -concurrent_redundant_via_mode reserve_space
set_route_zrt_common_options -concurrent_redundant_via_effort_level medium
set_route_zrt_common_options -eco_route_concurrent_redundant_via_mode reserve_space
set_route_zrt_common_options -eco_route_concurrent_redundant_via_effort_level medium
 
route_zrt_eco