How to change SAGA path in QGIS 2.18 Standalone

I have installed QGIS 2.18 Standalone (64 Bit) with SAGA GIS (2.1.2) and GRASS GIS 7. Afterwards I have installed the newest SAGA GIS 3.0.0.

I want to change the SAGA folder in the processing options, but there is no option there anymore (like in older versions and explained in this answer).

Is there another way to change the SAGA path in QGIS 2.18?

EDIT 1:

Is it right that QGIS 2.18 doesn't support the SAGA GIS 3.0.0 version?

In this answer it its explained which Saga Algorithm Provider can be used.

EDIT 2:

I checked the Advanced Options like in the answer from HDunn. There is no SAGA_FOLDER option as well.

Answer

In QGIS 2.18.2 on Windows, SAGA folder option came back again. Yay!

And SAGA 3.0.0 is now up and running.