Clicking the Practice button in the Practice tab of the toolbar (or selecting Practice->Select Practice)will bring up the Practice Exercises window, where you can practice words and characters that have given you trouble, random words or characters, or pieces of prose and poetry.
Alternatively, you can bring up a list of your custom designed practice exercises by selecting Practice->Select Practice Text...

Revision

Use the "Problem words" exercise to practice words that you've had trouble with in the past. The source text is generated from words that were mistyped in previously attempted exercises.

Use the "Problem characters" exercise to practice words containing characters that are troublesome for you.

These exercises are not available unless mistakes have been made in one or more of the other exercises.

Drills

Use these exercises to increase your response time to unfamiliar texts. The source texts are generated from random collections of words, letters and / or numbers.

Prose / Poetry

Use these exercises to practice typing natural English texts.

Professional

Select a professional exercise to practice typing emails, letters, reports and transcriptions.

Custom

If you have imported custom exercises (see the Custom Exercises section of this manual for more info), you can select them here to practice typing.

Dictation You may practice taking dictation against a prerecorded sound file.