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!