RBLX is based on API 581, therefore all the equations and tables and calculations are available.
There is a “Log” tab in the software which will give you results of all stages of calculations.
All calculations can be repeated manually to confirm that RBLX is calculate everything based on API 581 calculations.
Modification of input data is easily possible whenever is required. After each change in input data, RBLX updates automatically related DMs, risks, and inspection plans, accordingly.