There is a similar question concerning Watir-WebDriver.
What is the best way to do Ctrl+click on a DOM element?
A Google search of "webdriver ctrl click" turned up this result:
Ctrl+click requires three actions: a send_keys action to press the CTRL key, then a click action, and then another send_keys action to release the CTRL key.
The element is nothing but the variable to find the properties of the object so we are using WebElement to find it
If you guys want to click submit button you can use code