Hallo,
vielleicht kannst Du ja dies benutzen:

Remapping the Numeric Enter Key
Technote

The default setting for the Enter key on the 10-key keypad is Field Exit . To make it function as an Enter key:

1 Select Assist -> Keyboard Setup select Customize...
2 Select Actions -> Copy/Move/Swap Key.
3 On the left-hand side make sure the Select Source Key is highlighted.
4 Click on the Enter key on the keyboard.
5 Click on the Select Target Key .
6 Click on the Enter key on the keypad.
7 On the Source Key and Target Key , the Base state will be highlighted. On the Target Key click on the Shift state to highlight it.
8 Click on the Copy key.
9 Select File -> Save .
10 Select File -> Exit.