de15ac2542d2b375ffd780b647b3ff2e217ed6d1
braney
  Fri Jun 10 10:06:01 2016 -0700
fix some problems in bigChain and bigMaf support #17325

diff --git src/hg/hgTrackUi/hgTrackUi.c src/hg/hgTrackUi/hgTrackUi.c
index 4b271b3..904d32b 100644
--- src/hg/hgTrackUi/hgTrackUi.c
+++ src/hg/hgTrackUi/hgTrackUi.c
@@ -3227,30 +3227,32 @@
             }
         grpFreeList(&grps);
         }
     }
 puts("<BR><BR>");
 
 if (ct && sameString(tdb->type, "maf"))
     tdb->canPack = TRUE;
 else if (sameString(tdb->track, WIKI_TRACK_TABLE))
     // special case wikiTrack (there's no trackDb entry); fixes redmine 2395
     tdb->canPack = TRUE;
 else if (sameString(tdb->type, "halSnake"))
     tdb->canPack = TRUE;
 else if (sameString(tdb->type, "bigPsl"))
     tdb->canPack = TRUE;
+else if (sameString(tdb->type, "bigChain"))
+    tdb->canPack = TRUE;
 
 // Don't bother with vis controls for downloadsOnly
 if (!tdbIsDownloadsOnly(tdb))
     {
     /* Display visibility menu */
     if (tdbIsComposite(tdb) && multViewCount(tdb) > 0)
         printf("<B>Maximum&nbsp;display&nbsp;mode:&nbsp;</B>");
     else
         printf("<B>Display&nbsp;mode:&nbsp;</B>");
     if (tdbIsSuper(tdb))
         {
         superTrackDropDown(cart, tdb, 1);
         }
     else
         {