Changiing the value in effect "Normalize" (Normalize to ...)

Is there a combination of keys, instead of a mouse that makes a “blue” field, where the figures of “Normalize” so that you can delete and insert a new value?
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yes - use the Tab key to tab around the dialog

WC

Thank you! Just for some reason, it (Tab) has to be pressed twice. Is it right?
After the first press (1), after the second press (2):
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Immediately after opening the effect window:
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Yes, that’s right.

Clear, thank you!