thanks for answering so It's not possible to store this in Trezor? I've checked Omniwallet and I see they don't support for hardware wallet.
I realize that It's possible to store TETHER in any bitcoin address and then export the private keys and use them in a compatible tether wallet but I want to use it directly.
Technically it could be possible but it isn't something advised if the person doesn't know fully what he is doing (the process may not be easy for everyone) If he does, the USDT will be trapped in. It doesn't worth doing it.
And nope, no Omni wallet for Trezor, you're correct