I have a schema field which I want to use as a possible filter value on SmartTarget content selection. When I check the Fredhopper Business Manager System->Navigation section, I see the field is listed once for each publication content is published in with a slightly different identifier (eg metadata_tcm_79_10117_8_activity - the publication id bit varies).
If I want to create local Promotions that can use this field as a filter, do I need to make all instances of the field a live attribute the list? If not, which entry should I choose from the list to make live (the parent publication?). If so, is there any way to avoid this overhead and associated maintenance issues when, for example bringing new sites online.