Hello : this is probably more of a latex issue than Lyx, but I would like to do this quickly in Lyx, so...

What I want is a neatly formatted set of relations like a < S < b c < T < d and so forth. I just need the analog of the usual "3 column" equation array environment so that the various inequality symbols match up properly. In the above example I want 5 columns instead of the usual 3. I tried to use the AMS align environment, but had trouble adding the columns (the results came out with way too much spacing). How do I do this in Lyx? Thanks, Jim