When you install Rational Software Development products using IBM Installation Manager, you can install all of the features available to you, or choose customize your installation by selecting to install only the features that you need. You can, however, choose to install the excluded optional features at a later date.
Using the Modify Packages function in IBM Installation Manager, you can install additional optional product features for the products it has installed on your system. It is installed on your system when the first Rational Software Development Platform product is installed.
Details on modifying packages are available in the IBM Installation Manager online help.