The document provides instructions for several functions in a construction project management system:
1) The Progress Period function is used to define progress periods by entering project, contract, start/end dates, invoice information, and remarks.
2) The Progress Update function allows specifying quantity completed by period for each contract item.
3) The Client Charges function defines charges for the period and allows copying from previous certificates.
4) Payment applications and certificates are used to process payments, with certificates linking to accounts receivable.