Add a new rule entitled “Time Drag”:

Often,  a Traveller, henceforth refered to as the Dragger, may declare a Time Drag on another Traveller, henceforth refered to as the Dragged, within the Dragger’s Range, by making a post to that effect. For the next 24 hours, the Dragger may change the TL of the Dragged to any game date within the Dragger’s Range.

And add a new sub-rule, entitled “No pushing and/or pulling”, to rule 2.12:

No Traveller may declare a Time Drag on another Traveller without either the Arbiter’s or that Traveller’s permission.