Panasonic EB-MX7 Operating Instructions Manual page 45

Basic Operations
Changing the input method
Press and hold [e] to cycle through the input methods as follows.
T9 (T9y) 7 Multi-tap (Abc) 7 Numeric (123)
Changing the letter case
Press [e] repeatedly until the icon for the required letter case mode
appears.
Auto capital change
When the letter case is set to Automatic (T9y and Abc), the first
character is entered as upper case and subsequent letters as lower
case.
When one of the following characters [. (Period) ! ? ] is entered, the
next character is entered as upper case.
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