Options
mergeDisplay
By default, when you set the "display" property, you replace the default one. This setting merges them instead.
mergeDisplay: true,
display: {
'{bksp}': 'delete',
'{enter}': 'submit',
}
// Result:
{
'{bksp}': 'delete'
'{enter}': 'submit',
'{shift}': 'shift', // < Merged from default among others
....
}