When you make change on product cockpit list, editor, advanced search, base, etc you need to reload configuration xml files to system. Below BeanShell code do this.

import de.hybris.platform.core.initialization.SystemSetupContext;
import de.hybris.platform.core.initialization.SystemSetup;
import de.hybris.platform.core.Registry;
SystemSetupContext setupCtx = new SystemSetupContext(new HashMap(), SystemSetup.Type.PROJECT, "mycustomcockpits");

Registry.getApplicationContext().getBean("cockpitImportConfig").importCockpitConfig(setupCtx);