How to make a selection by infoblock with resaving the necessary elements?

Question

1C-Bitrix

Good day.
Can you tell me how to use the Bitrix methods to make a selection on the infoblock with the re-saving of the necessary elements?
Conditionally, I need to massively assign an additional css class to the text in the infoblock, or vice versa, replace it, etc...

Answer 1

Maybe not edit the data in IB, but correct the template of the component that displays it?