Quoting msg from Johnny Waymouth to All:
Hi Johnny,
 JW> Ok.  I've gone through the "buildhlp.exe" file, and when I got to
 JW> section 6, it began not to make sense.  First: What is a high and low
 JW> tag?  How do I set it? 
 JW> I found that t sets a sector low tag and h sets a sector high tag, but
 JW> this doesn't seem to help much :) 
I can imagine. :)  The low and high tags of a sector (could be a wall
or a sprite as well) define its function.
For instance, if you want a wall which can be shot (lights), you'll have
to define this. You can set the tags by using Alt H and Alt T. Check out
the default levels _SE.MAP and _ST.MAP to see where you can use which
tags... good luck!!
Grtx ... Edwin
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