Problem description: 

Steps to reproduce:
1. create a comment to a cell
2. right click that cell
3. observe context menu does not offer option to edit the comment

Current behavior:
as above

Expected behavior:

provided "edit comment" item in context menu

I note that:

1.  The version of ms excel that I use does provide this item in the context menu, and I am therefore accustomed to having it there.

2.  The current procedure to edit a comment, which is not going to be obvious to a naive user, apparently is as follows:

  a.  right click cell
  b.  select 'show comment' from context menu.  
      (Naive user:   "What, the comment was already showing"
      -- so this is a poor choice of wording.)
  c.  left click on comment to make it editable.  
      (Not obvious you need to do this to a naive user.)
  d.  do whatever editing is required.
  e.  left click on affected cell
  f.  select "hide comment."  
      (Naive user:  "What, I don't want to hide the comment,
      I want it to show when I hover over the cell" -- again
      poor choice of wording.)

Wow, what a pain in the butt!

Now, let's compare to the equivalent process in my excel version:

  a.  right click cell
  b.  select "edit comment" from context menu.
  c.  edit the comment.
  d.  left click affected cell or anything else to return
      to hover-shows-comment mode.

Note that fixing this could maybe share code with bug 83948.
Also note that I am using Version: 4.2.6.3, an option which was not offered in the pulldown for this bug report.

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Operating System: Windows 7
Version: 4.2.6.2 release