I've been reading up on Platform Lifts on the OSM wiki - confusing at first, but I think I understand it now in general and what you and OPENER have done here.  Thanks for taking the time to respond in full.  Maryland certainly has 'normal' 'elevators' to all platforms, and (if I remember correctly) some temporary ramps for certain train types "ramp:portable=yes"?   I'll add all that and wheelchair=yes next time I have eyes on the site.