Some travelers through New Hampshire’s Manchester-Boston Regional Airport soon will be able to keep their shoes on while going through security. The airport was selected by the Transportation Security Administration for faster screening lanes. Forty airports are participating in the program, including Logan International Airport in Boston. Manchester is one of 60 additional airports on the list. Under the PreCheck program, qualified passengers do not have to remove their shoes, light jackets, and belts. They can keep laptops in cases, and liquids and gels in their carry-on bags.