Advanced routing ok button disabled_ Autoplant

I have create the one spec in Autoplant  select 

Select the Place Pipe command and start placing the pipe as per preferences  OK has disabled 



i tried this much way also  what is the solution for this.


https://communities.bentley.com/products/plant/w/plant_design_and_engineering__wiki/50293/how-to-turn-on-off-the-advanced-routing-in-autoplant-modeler

https://communities.bentley.com/products/plant/w/plant_design_and_engineering__wiki/42212/advanced-routing-in-autoplant-modeler