Apple Macintosh PowerBook 1400 - Manual (Page 135)

The Custom Install dialog box appears, listing all available components for
the selected software product.
8 Scroll through the list of components and click the checkbox next to each component
you want to install.
To select individual items within each component, click the arrow to the left
of the component, then click the item you want to install. To get additional
information about a component, click the box with the letter i in it to the right
of the component. Files that support the components you chose may also be
installed.
9 Click Install.
10 Follow the instructions that appear on the screen.
11 Repeat steps 5–9 for all the software you selected.
The Install Mac OS application automatically opens the Installer for next
selected software package in the list.
12 After all the installations are completed, restart your computer to use your new software.
135 Diagnostic Techniques