Modifying Drawing Sheet Properties

You can specify the properties of the selected drawing sheet, such as the sheet title, sheet number, and whether to include it or not in publishing operations.

It also displays the custom properties, if any.
Expected sheet Displays the path and the name of the drawing where you want to save the sheet. Modifying the Expected sheets reassociates the sheet with the drawing sheet set.
Found sheet Displays the path and the name of the drawing where the sheet was found.
Drawing Sheet Custom Properties

Displays the list of custom properties defined for the drawing sheets in the subset, if any. See Modifying Subset Properties.

Rename options Lets you specify naming options for each drawing sheet, individually. See Modifying Sheet Names and Numbers.