Greetings!
Two questions if you please:
If I want to send an airdrop to a few MyEtherWallet addresses, how can I "freeze" it, so the recipients can move coins only after I allow the recipients to do so?
How can I leave a small note in the airdrop, so the recipients can see for example my website address next to the amount of coins in their MEW wallet?
Many thanks and good luck!
You can find many answer for your questions here even the code needed to freeze a tokens
https://ethereum.stackexchange.com/questions/60220/can-i-freeze-portion-of-erc20-tokens-via-smart-contract .