I cannot find the registration field anywhere.
Did you install Impulse? You can add your serial there.
Impulse Client - Full
After you register the email you used to purchase WB Impulse should detect your purchase and show WB on the My Desktop tab. If it doesn't, click on the ? in the upper right and choose register. Populate your info there.
There are many great features available to you once you register, including:
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