List the rounds, the minimums, and every constraint. The builder maps it onto real working days, keeps presentations off blackout days, stops the client's feedback clock while they're away, and flags anything that runs past the contract.
Paste the Phase / Activity rows from the project's Planning & Closing sheet (select the cells and copy — tabs or commas both work). Each activity becomes a round you can then adjust.
Upload an .ics calendar export, or paste CSV rows: label,start,end (dates as YYYY-MM-DD, end inclusive).
label,start,end