[GNC] How to define the "Action" list in, e.g., Edit Bill

[Eric Chapman]

How does one define that "Action" list in "Edit Bill"?

I cannot figure that out (see attachment).

-- 
Eric Chapman
GnuCash 4.13 on MacOS 13.1 Ventura running on 2018 Mac Mini (3.2 GHz 6-Core Intel Core i7)
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