More than one geometry' parameter in an API call'

Hi,

I have a particular project area that i would like to apply a band equation to a specific area and a different equation to another area. I am using the API function and would like to know if two “geometry” parameters can be called or how i could segregate the analysis in a single call.

My alternative is to run the API twice (one for each area of interest) then combine the two tiff outputs, but this is a little messy.