Can't find a 2024 detailed options list but for 2023, the fold-flat came with Option group H1 AND H2 (both required.)
— Premium cloth front bucket with power-adjust for driver, full-length center console, 60/40 split-folding rear bench with center fold-down armrest and fold-flat load floor (requires H1 and H2 Groups) (*MJ) O
Big Horn/Lone Star(20) Level 1 Equipment Group (H1) — Includes halogen fog lamps, GT3 exterior mirrors, *M9 premium cloth seats, leather-wrapped steering wheel with audio controls, sun visors with illuminated vanity mirror, switchable dome lamp, footwell lighting, upper closed glove box with painted door and Big Horn/ Lone Star(20) badge, glove box lamps, storage, rear in-floor boxes (Crew Cab only), fold-flat load floor (Crew Cab only), manual-sliding rear window (Regular Cab only) and driver’s-door foam bottle insert (A62)
Big Horn/Lone Star(20) Level 2 Equipment Group (H2) — Includes H1 Group, Universal Garage Door Opener, poweradjust pedals, Blind Spot Monitoring (BSM)(5) and Rear Cross-Path Detection System,(1) premium LED taillamps, 7-inch Driver Information Display, key fob-activated Remote Start(12) System, security alarm,(24) ParkSense® Front and Rear Park Assist(11) (six rear sensors with Dual Rear Wheel (DRW)), heated front seats, heated steering wheel, Dual-Zone automatic temperature control, power-sliding rear window (Crew Cab and Mega Cab® only), rear window defroster (Crew Cab and Mega Cab only), dual remote USB ports (charging only; not available with Regular Cab), 115-volt, 400-watt AC power outlets (front and rear; rear not available with Regular Cab) and damped tailgate (A63)