no "Source Address" in "Http Request Defaults" Config element

[harry_no_spot]

hi,
A suggestion. there is no "Source Address" in "Http Request Defaults" Config 
element, but in "Http Request" Sampler.
should add one.
i.e. I defined a variable ${HostIP} for every user, I have to enter "${HostIP}" 
in every "Http Request" Sampler's "Source Address".  If there is a in "Http 
Request Defaults". I can enter once and It's done. I can relax...