We are using response-schema API to fetch the schema of a survey.

In our survey, we are having a multipunch Grid with two statements having variable name set QX and QY, and five responses with recode values starting from 1 to 5. When we get schema through response-schema API, we are just getting two columns in schema which are QX and QY while we need names in schema like QX_1, QX_1, QX_3, QX_4, QX_5, QY_1, QY_1, QY_3, QY_4 and QY_5 splitted as we get in exported csv data file when we select "Split multi-value fields into columns" to download the CSV.

We checked over Support and we can see that with parameter breakoutSets in API we can enable/disable "Split multi-value fields into columns" but breakoutSets seems to be not supported with response-schema API. 

Please help me on this and let us know how i can achieve my goal.