If you have observed auctions and want to quickly place an offer in all or selected ones only , you can do it with sniper.
After logging into your account, on the main page click "import your ..."
A window will appear with available auction logins. After selecting and moving to the next step, you'll see your list of watched offers.
Now just enter the price (1) and save the offers (2). Your shots have been added and are now visible on the home page.