Do it right the first time. Otherwise, you risk delaying your refund. The feds will NOT look anything up "for you" at this time of year. They just flag it, put it in the "take care of this later" pile and there it sits until tax season is over.
To correct the 1099-R under the Personal Income tab scroll down to the Retirement Income & Social Security section and elect to update IRA, 401(k) Retirement income (1099-R). Indicate that you DO have a 1099-R and you'll get to the screen that will list your 1099-R. Elect to edit that 1099-R and work it through, making corrections where necessary. Changes don't "stick" until you click a DONE button. So keep working through until you get to a screen with a DONE button on it, and click it.
