@Z-man posted:check out this new item re-railer from Lionel:
"Lionel Trains | Lionel 12039 Fastrack Railer- (Also compatible with 0 & 027 track)" https://www.trainworld.com/man...le-with-0-027-track/
While the thread brought up references to that above, the real thing the OP is looking for is an O gauge version of what RRDOC had in this post.
-Dave