investment default price entry question

[Jack]

In the new investment dialog, price entry can be price per share, all  
shares, or default.
I assume the default is the setting for the Investment account within  
which you are creating the investment.
In the new (investment) account dialog, you have the same three choices.
Where do you see or set the default referred to here?  I cannot find it  
in any configuration dialog.
Am I just not seeing it?

Jack