Spreedsheet conditional

Hi,
in Spreedsheet control is it possibile to set conditional format to a specific range and not just to a single cell?
How can I do this?
Thanks

You can define the formatting for the range of cells ( just select multiple cells and click the “conditional” button )

When using API, you can add styling only to one cell by one API call.
If you need a faster way, you can use s.conditions.parse and s.conditions.serialize API. It allows to retrieve all current rules as a JSON ( serialize ), alter them, and apply back ( parse call )