There is a limit on which you can place an order.
Unless it has changed over time, or with the fact that we are now trading in dollars instead of cents, I recall when I would put an order in to sell shares back in the day (long ago), if I placed it with too large of a spread between the actual asking price and what I wanted to put, I would be told I could not place the Oder as it was too high.
Also, you are taking a risk of losing your shares if you place an order to sell which is double the current share price. Look what happened a couple of months back when we were at three dollars and the share price climbed in a week to seven dollars.
So there is risk if you are not on top of things!
JMO