Apple Mac OS 7.6 - Manual (Page 17)

If you choose the Easy Install option, you can skip ahead to step 10. If you
want to be more specific about which components to install, follow steps
7–10 below.
7 Open the pop-up menu and choose Custom Install.
The Custom Install dialog box appears, listing all available components for
the first software product.
8 Scroll through the list of components and click the checkbox next to each component
you want to install.
You can see and select individual items within each component by clicking
the arrow to the left of the component, then clicking the item you want to
install. To get additional information about each component listed, click the
box with the letter i in it to the right of the component. Files that support the
components you choose may also be installed.
17 Installing Mac OS 7.6