[Genome] liftOver executable

[Benjamin Berman]

Is there a way to make liftOver take multi-track BED files (i.e.  
where each set of data lines is preceded with a "track" line)?  I  
tried it with both the online and standalone (MacOS) versions, and I  
get the error:

"Expecting number field 2 line 1 of ./file.bed, got name=trackname"

It would be pretty simple for me to write a little utility that makes  
temporary files and processes each track seperately, but I wanted to  
see if it's possible to do in the main version, and if not put in a  
feature request :)

Thanks,
ben.