Some suggestions to the exchange feature

- The Total ETH field should be editable and auto compute the Amount of RKC
- The "Available Balance" amount should be clickable and auto place it in the Total ETH field.
- If you clicked the Buy/Sell Orders price, the price should be auto place in both Buy/Sell Order field.
- Add Cumulative Total in Buy/Sell Orders.

More power to this project and cheers