Setting Up Hierarchial Profiler

Any idea why this would be grayed out in the Toad execution options Profiler
tab?

I have the “Use Hierarchial Profiler” option enabled.

I executed the HP script under RDMBS/Admin

I create the PUBLIC SYNs for the HP objects.

Am I missing anything?

Did you grant EXECUTE on DBMS_HPROF to public?

Yup

Is the whole thing grayed out, or just certain pieces of the Hierarchical
Profiler box?

The entire thing, everything under where you can name the DBMS_PROFILER runs