Two posts below the link you provided, is another reply of mine, which explains how to manually enter VOR, and ILS frequencies, and headings/radials:


Markoz wrote on Jan 13^th, 2017 at 8:55am:

Open the CDU, and click on the NAV RAD button. There you can enter the frequencies, and course. LSK 1L = NAV1 Frequency LSK 2L = NAV1 Course LSK 1R = NAV2 Frequency LSK 2R = NAV2 Course LSK 4L = ILS Frequency LSK 5L = ILS Course