Hello,
First of all, thank you for your purchase.
Currently the plugin can import content only from a specific source (for a specific rule). If you wish to import content from multiple sources using the same search query, you need to create multiple rules for this, each importing from different sources. The easiest way to achieve this is to duplicate existing rules, to do this, please create a rule from a specific source and click ‘Duplicate This Rule’ from rule actions. When the rule is duplicated, please select a new article source for it.
Also, I noted your suggestion, will think on a way to add support to the plugin to import content from multiple sources in the same rule in upcoming plugin updates.
Regards, Szabi – CodeRevolution.