Multiple 2-variable regressions

[Thomas La Bone <booboo gforcecable com>]

I am using Gnumeric 1.10.8 on Windows XP SP3 (which is working quite 
well by the way). When I go to do a linear regression from the menu:

Statistics -> Dependent Observations -> Regression

I get an interesting window that offers "Multiple 2-variable 
regressions" with an option for "Multiple dependent (y) variables". 
These options are not described in the help menu. Can someone refer me 
to documentation that explains what these options do? Thanks.

Tom