Problem:
The user would like to duplicate a custom field.
Solution:
Toolset does not have a feature of copying or duplicating a field. And because the field already exists on the field group it won't be offered on the list of already created fields.
The 2nd field needs to be created manually. Or try this workaround:
1. Rename the existing field and its slug. Check this screenshot http://prntscr.com/20ly8n1
2. Save the field group. This will remove the initial field from the group.
3. Add a new field, and choose the initial field for the list of already created fields.
The user asked if it is possible to join WooCommerce products and orders in post-relationship so that ordered posts can be filtered by the products in a view.
Solution:
Informed that this is possible using custom code and shared information about the WooCommerce's hook "woocommerce_order_status_completed" and Toolset function "toolset_connect_posts".
