move all sites by 10000 down ??

 
  • Dear All experts

    we want to move all the model (all sites) to level down by 10000mm but many sites exist there and using the model editor is impossible due to the heavy work of many sites,  also doing it by collecting zone members is very time-consuming (more than 500 zones exist there in the model), does anybody have the better suggestion to do that ??

    thanks