After installing the Toad for Oracle Development suite, the button to access Code Tester from Toad for Oracle is grayed out.
原因
Code Tester is not installed. Toad for Oracle and Code Tester are two separate products that both need to be installed. Code Tester can be installed with the Toad Developer edition, but it needs to be selected during the install. If Code Tester is not selected in the install, it will not install it.
対策
Install Code Tester using the Toad for Oracle installer and a Developer Suite key. When running the Toad for Oracle installer, make sure Code Tester is checked in the window that lists which products can be installed.