Sort of by accident I located 2 columns in the windows UI which are not re-sizable and are essentially invisible by default. They can be shown by pressing ctrl-"+" which is the auto-fit keyboard shortcut in windows to re-size all the columns on screen to make their contents as fully visible as the window size allows. They appear to the left of the "Status" column in all of the tabs.
The first one is a 21 or 22 character string of numbers of the format 0000012345-1-9087654321 (and may contain a final trailing "-0" if it is a transaction where you sent coins).
The second is a very long hex string of about 64 characters or so (I am too lazy to try to count them all)
I would provide a screenshot...but I do not know if there are any privacy implications in disclosing what my transaction log displays (and specifically the contents of these columns).
I am just wondering what these columns are for, and why they are hidden and locked by default?