CCS6.1 - DEBUG-- VARIABLES --- (1) How to display Global Variable (2) how to (consistently) change a local variable.

CCS6.1 - DEBUG-- VARIABLES ---      please see the screen shot, below.   Sorry, its pretty small.

The software is simple, it is from  TI's  SLAA393c   'advanced debugging examples'   Example 1.   Imported C text into CCS6.1.

Of course, DEBUG was stopped, then single-stepped ......

(1) How to display Global Variable ??

I wish to see        volatile uint16_t wLoopCounter = 0;         in the list,  and eventually change it, etc.     but the  'ADD GLOBAL VARIABLES' button is greyed out.    (5th from left, starting at 'Show Type Names')   I can see this global variable if I hover over it in the   C-code --  and even change it -->   but this is awkward as it of course disappears when I move the mouse away. 

So.....    How to display a Global Variable in debug, in the list, please?

(2) how to (consistently) change a local variable.       (I think not too important question !!!)

The point here is the help documentation (left screen / right side) doesn't accurately say what to do. I determined via trial / error:

The loop variable               volatile uint16_t count = 0;              is seen in the list.      It seems the only way I could change  COUNT  is:

(A) to make the list view 'COLUMNS' ...  double click VALUE ....   edit that value

(B) in the C-code...    hover over the variable name    COUNT   box comes up  ...    click/edit the value in the box.