To catalog a disk in a Unidisk 3.5 on an Apple IIc with system utilities 2.1, you may choose 4 options on the menu screen:
1. built-in drive
2. external disk 3.5 #1
3. external disk IIc
4. Prodos Pathname
When choosing to format a disk, of course, the first 3 options are present.
Users of AppleWorks versions previous to version 1.3 may be confused by the menu screen shown when they choose to catalog a disk or change current disk:
1. Drive 1
2. Drive 2
3. Profile or other ProDOS directory
Choose option 3 to use the Unidisk 3.5 with AppleWorks before version 1.3. In these earlier versions, you can refer to the UniDisk 3.5 only by its pathname, such as /appleworks/business.
Refer to page 9 the pamphlet "Using AppleWorks on the Apple II Unidisk 3.5" for further explanations of how to load, save and list data files with Appleworks and the 3.5 disk.