The user wants to change the key for opening Key-in instead of Enter key.
1.1 Go to File -> Settings -> User -> Preferences -> Input -> Pressing Enter Shows Key-in Window
1.2 Turn off : "Pressing Enter Shows Key-in Window":
1.3 Then click: "OK"
2. Assigning a specific key to open: "Key-in"
2.1 Go to File -> Settings -> User -> Keyboard Shortcuts
2.2 Add a new keyboard shortcut (in the key column - assign a key (assign a key that is not assigned), and in the key-in column, type: "inputmanager cmdbrowse").
2.3 Then click: "Apply" and "Close"
See also
Keyboard Shortcuts Dialog
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Krzysztof Solski