Subway stations with multiple entrances

I've been adding and correcting some New York City subway stations this morning but I was wondering how to handle stations with multiple entrances. I've looked at other stations and they're all points on the map. However, in the real world many stations have two entrances, and some can have 6 or 8 entrances sometimes blocks apart. Here's a simple example of a station I just added:

http://osm.org/go/Zct9jdDdx--

I put the POI icon at 44th Drives and 21st Street, but the other entrance is over 200m away, just to the west of 44th Drive and 23rd Street. Is there a way to "draw" the station so that the two entrances and the platforms can be three connected objects (and is there a way to draw the platform in the first place)?

Another point is that this station is connected via underground pedestrian tunnels to the Court Sq (G) station at 45th Road and Jackson Avenue, the Citigroup building at 44th Drive and Hunter Street, and in the near future to the Court Sq (7) elevated subway station.

In essence what I'm saying is that it's rather inaccurate to have the station as a single point where I located it on the map when in fact it's a complex system of connected tunnels, platforms, elevated stations, and buildings. And this is a relatively simple one. Union Square for example, at

http://osm.org/go/Zct8XcDAE-

has 4 platforms, 7 subway lines, and at least 6 entrance, and yet on the map it's represented as just a single POI. There are a number of much more complicated stations, Times Square, 34th Street and Grand Central for example.

So my point at its most basic is that a bus stop on a corner can certainly be one POI icon, but a subway station with two entrances could benefit from two icons, except that I don't want them to look like two separate POIs on the map. Is there an accepted practice for doing this?

Thanks.