transfer sampler instrument from garageband desktop to garageband iOS

Hello,

I have in Garageband on the macbook pro a repertory named "old" where I can found, among others, a sampler instrument named "Nature Sounds".

I found :

MacHD -> Library -> Application Support -> Garageband -> Instrument Library -> Sampler -> Sampler Instruments -> Nature Sounds.exs

and :

MacHD -> Library -> Application Support -> Garageband -> Instrument Library -> Sampler -> Sampler Files -> Nature Sounds -> the 12 .aif that make up the collection

How can I transfer this collection to my Garageband on iPad ?

Thanks

Caro