Keyboard with the right enter key on the left hand side
The right enter key is the enter key on the numeric keypad. (Because the numeric keypad is generally on the right)
If the dominant hand is the right hand, the right hand is occupied by the mouse or trackball. Full keyboard (type with numeric keypad) is not recommended.
If you really want to make it comfortable to input numbers or if you are using the numeric keypad as a shortcut key, It is recommended to place an external numeric keypad or a gaming one-handed keyboard on the left.
Originally, I think that the calculator was also like typing with the left and shorthand the answer with the right hand. Let's remap the position of 0 with special keys so that it is easy to use the wrong position 0 or the 123 and 789 columns are reversed types.
Although it is quite special, there is also a full keyboard with a numeric keypad on the left side. If you don't want to add an external keyboard separately, you might want to look for it...