It’s easier & faster to evaluate your Trade
Once you have entered a position, you can easily make adjustments for further evaluation using the group of Rolling Icons in the upper-center part of the Option Table.
These icons will allow you to move the whole position: 
Up or Down Strike Prices
Extend or Shorten Time
Widen or Narrow the Spread
The [X] acts as a clear function. Clicking once will clear the current positions in the chain. Clicking a second time will act as “all clear”. This will clear any snapshot trades and fully reset the option chain.