[robgolding]

Zapier supports RSS for both triggers and actions, so you can combine feeds together using multiple Zaps.

Also, you can run arbitrary code to manipulate data in any way you like using the Code app[0].

[0] https://zapier.com/zapbook/code/

[onli]

I did not realize that zapier can also create a new feed based on the content. That is quite powerful, thanks.