There are some small changes to Friday’s schedule at the British Grand Prix: the MotoGP grid will test a new bike swap procedure for flag-to-flag races at the end of their FP2 session. Moto2 FP2 will therefore begin ten minutes later.
After the chequered flag comes out at the end of MotoGP FP2, riders will return to pitlane and swap bikes using the new, trial system. They will then exit pitlane to do one more lap of the track, and may do a practice start on that lap.
This new bike swap process will have signs on pitlane indicating the point at which riders may turn in, and a new bike position for all teams.
It will also include a mechanic with a lollipop whose sole task is to observe pitlane traffic during the bike swap and ensure his/her rider is released safely.
source: motogp.com