If you want to create build configuration based on another, right click on the project to get its context menu -> Build Configurations -> Manage -> New. There are several options - you can create new configuration copying settings from another configuration of the same project or another project or any configuration defined in CDT in your installation.
Thanks, so i create a release config with copying debug settings. Now how to best turn off debugging symbols or generally what do I need to change after copying the debug config for the release configuration?
Many thanks again