Hi guys, a quick (and simple I guess) question: how can I install the Custom UI Beta 2 in MoI 4 (Beta Jan 22 2020)?

What I've done so far:

1) Downloaded MoI 4.0 Beta Jan-22-2020 from http://moi.maxsm.net
2) Unzipped directory and copied into C:\Program Files\MoI 4.0 beta Jan-22-2020
3) Started MoI.exe

After that, I cannot see the custom bar. Is there something I'm missing here? I've been reading the forum, but I cannot find what's wrong. Should be something obvious.

Thanks for your help.