After typing in the callsign, just hit tab and save a mouse click. Also, if you are doing the contest enough to make a big log to send in, you would want to create a new log so you will know if it's a dupe or not and not pull from your normal log.
Brian Chapnick Send your logs to LOTW with the ‘upload’ button. For a contest, you can highlight your logs, save as an adif file (many contests accept this) and then send the adif logfile.
