It simulate keypress action to trigger the key down event needed on the page.
[MADCOW:htmlElementReference].sendKeys = <<text value to send keys>>
aInputId.sendKeys = DOWN aInputId.sendKeys = DOWN, ALT
createClaim_claimTab.sendKeys =ENTER, DOWN billingCenter_common_menu_newpayment.sendKeys = RIGHT billingCenter_common_payments_paymentAmount.sendKeys = HOME, DELETE