Store entire template in a variable with the Silverfin API

Dear Silverfin Community,

We want to use the API CALL!/financials/postV3CompaniesCompanyIdPeriodsPeriodIdReconciliationsReconciliationIdCustom to post an entire template - is it possible to generate liquid code for this template elsewhere and post this liquid code to a variable or a capture that is included in a blank template in Silverfin.

Thanks in advance!