Push Tokens to Partner: This is used if you want to give your peer funds during the Channel Open. For example, if you want to open a 3,000,000 sat channel, and owe your peer 1,000,000 sats, you can push 1,000,000 using this option. The initial channel balance in this example will be 2,000,000 on your side and 1,000,000 on their side.