This is a modification from the original Keymotion script for trains, boats, etc Posted by Opensimworld 6 years ago, with some modifications.

Fully commented. Added Cross-Region function. It just uses a simple reference to the region corner and does the math!

Also added a Resume feature. Instead of getting slingshotted back to the Starting Point, this will resume the tour at the nearest waypoint. 

One caveat, it may not be the Next waypoint, it may be the last waypoint, depending on where you hit Stop! The logic looks for Nearest.

Two Versions - One is like the original, anyone can touch and run, the other Group Only - just set the vehicle to Group, wear your tag to operate.

Update: Also Added Two New Versions --------

Anyone can touch and Group versions with Region Name logging for each line of the notecard!

This makes it easier to audit your path, when editing Pauses and Speed, if you want to use this one, start fresh!

Since this adds region name labels to each waypoint. If you're updating from the original release, you'll need to re-record your route notecards (ADD POINT / SAVE CARD) — the old 4-field format won't parse correctly here."