When Khmer Unicode NiDA Keyboard layout support with iPad OS when I type with Apple magic keyboard?

Usually, I use my computer for my daily work by type Khmer Unicode NiDA keyboard layout. And sometimes I need to use my iPad Pro to instead my computer when I need. But I cannot type Khmer Unicode NiDA keyboard layout on my iPad Pro with my Magic Keyboard. Hopefully, iPad OS will support with Khmer Unicode NiDA keyboard layout as soon as possible.

Thanks.