The RL-27 (Relevé 27 – Government Payments) is not supported in StudioTax. There is no dedicated field for it.
However, the amounts reported on your RL-27 may need to be reported on your tax return using the appropriate business forms — typically T2125 (Statement of Business or Professional Activities) and TP-80 (Business or Professional Income and Expenses).
Refer to the official Revenu Québec instructions to determine exactly which boxes apply to your situation: