Can I use the Trezor beta wallet and use Trezor MyEtherWallet to purchase EOS tokens and
claim them later?
maybe I need to create new MyEtherWallet not connected to Trezor for EOS tokens?
If you are using MyEtherWallet, the instructions to claim are here
For address and ABI / JSON Interface, enter the information above and click Access
Click ClaimAll from the function dropdown
Load in your wallet file and unlock it
Click Write
set Amount to Send to 0 and Gas Limit to 3141592
Click Generate Transaction