Apple IIe Card - Manual (Page 68)

2. Use the mouse to drag the Clock icon from slot 2 to slot 4.
When you release the mouse button, the two icons switch places and
both become gray. (They become gray because the change isn’t
complete until you restart the Apple IIe Card—but don’t worry about
that because this is just practice.)
3. Drag the Mouse icon back to slot 4.
The two icons switch back to their original positions.
Chapter 3: Learning to Use the Apple IIe Card 52
Click this icon and
while holding
down the mouse
button . . .
. . . drag it here
and release the
mouse button.