excluding fields from tab-advancement

[Dr. Hawkins]

I have some fields (e.g., totals that might need to be overridden for
reasons beyond my comprehension) that I want users to be able to click
into, but be excluded as the user tabs along in the "normal" fields.

I'm not seeing a clean way to do this.

I could intercept tabs, perhaps?  Catch mouseUp and select the field
text (do I need to set it focusable before this?)

It seems that there should be a basic property that covers this.  In
fact, I thought that there was one.

-- 
Dr. Richard E. Hawkins, Esq.
(702) 508-8462