When the Simplify file inputs checkbox is selected (default), you can have only Table Format file per table and one Form Set file. Because the default files created during Project creation are enabled for all System files and Assembly Library files, the File Inputs pane is not shown in the Project Properties window. As long as this checkbox remains selected, you can modify an existing Table Format file but not create a new (unless the existing file is somehow deleted). When Form Design files are created or copied into the Project, they are automatically enabled in the Project’s single Form Set file.

When this checkbox is cleared, you can have multiple Table Format files per table and multiple Form Set files. Because you must manually configure the different views you want for System files and Assembly Library files, the File Inputs pane is shown in the Project Properties window when you select a System file or Assembly Library file in the Project Properties pane. For more information, see File Inputs (Project).

In the File Inputs pane for the active file, you manually enable the Table Format files and Form Set files to use. For more information, see Enabling Table Format and Form Set Files.