Here is an amazing example: 🚗 HOW TO: Drive into / Drive Off the scene with Character inside (moving the car and character at the same time can be applied to moving an overlay and character at the same time)
Use & for CHAR and & for the overlay or vice versa so it happens at the same time and use shifting, adding a number, in seconds to the shifting overlay command.
Example from linked thread:
&JAMES walks to spot 1.032 106 -85 in 3.0 AND JAMES does it while idle
@overlay CAR ANGLE SILVER shifts to -342 -48 in 3.0