After collecting data and creating a Temperature Distribution file, you can evaluate multiple TD files along with the current file you have open.
On the TD file screen, in the "Analyze Data" section, click the "Evaluate Multiple Files" button to go right into establishing a Come Up Time or Vent Schedule (and a new TDCAL record will be created). Clicking this button will bring you to the 1st tab within the CUT/Vent Establishment page, the "MinMax" tab.
To add more files, simply select "Add Files" and choose the TD files you would like to add to this TDCAL record. To access TD Report information, go to the "Reporting" tab (the 2nd tab within CUT/Vent) at the top of the page.