*for external image viewer, the default RangeValues causes problem, i.e. other defaults not set. (FIXED)
*global default does not always apply to external image viewer(FIXED DM-7016)
The Gator implementation related to coverage map
(1) default symbol size, shape, color setting is different from that of original map
(2) cannot specify the shape, size, and color through API;
(3) cannot specify the shape, size, and color of a search center through API;
(4) does not display any image and source when the table has only one ra,dec values, for example: one table with one position value or one table with many records but has the same ra,dec values. MOVED to DM-7001
(5) the sources on coverage map are not clickable. However, on table and plot are clickable and work fine. (FIXED)
more issues:

Other issue

• It's possible to select distance tool and then area selection. First drag would define area selection, all the following line. A click would be defining a 0 length line, even if point selection is enabled. Can't repeat, i think this is fixed.