I can answer for RI - yes, a elevator to upper floors
RI has two wings - an L shape. Wing "1" is on the street side, "2" is parallel to the Maho hotel next door The RI web site has room plans for the 1 and 2 bed units
Room # info - the room tells you where the room is Room 4104 means 4 - 4th floor 1 - street wing 04 - 4th from the elevator