Finding a Plugin to Select Different Surface Areas

[Andrew Moran]

Hey all,
    I'm working on designing a macro for measuring neocortical depth for a
Nissl stained rodent brain slice.  Currently I've used some custom ImageJ
plugins, together in a macro, to set up and select current slides to
measure entire brain area and allocortical area, thus giving me a ratio of
neocortex to entire brain region.
    I'm stuck on the macro reading:

run("Images to Stack", "name=[] title=[] use");
run("Show Info...");
run("ROI Manager...");
run("Make Montage...");
run("Scale Bar...");
run("Select None");

And I can't find the freehand drawing tool for selecting and measuring a
surface area.  Any suggestions or hints?

                                                     Thanks,
                                                      Andrew