Here's a start (from the manual; I don't own an Eclipse yet):
Select one of the shifter algorithms ("Dual Wammy").
Use the Master parameters.
Set the Heel parameter to 0 cents.
For a Shallow emulation, set the Toe parameter to – 4 cents.
For a Deep emulation, set the Toe parameter to – 30 cents.
Delay to minimum.
LowNote to match the input instrument.
XFade to minimum.