Hi Tonnarak --
Those are nice instrument combinations. I hear why you like them.
You should be able to create those on Genos as the Genos and Montage have very similar voices. You will need to select three different voices (such as acoustic piano, warm pad and strings) in RIGHT1, RIGHT2, and RIGHT3. Then use the mix sliders to control the volume of the RIGHT1, RIGHT2, and RIGHT3 parts.
I suggest watching a different video by Creative Worship Sounds:
https://www.youtube.com/watch?v=k0nWkBp26V0This video shows how CWS creates similar layers on Montage. Montage allows more layers than three. However, three layers ought to be enough for these wash-y kinds of sounds. Otherwise, the overall sound gets muddy and you won't be able to hear softer voices anyway.
Here's what I saw on in the video. All parts are layered across the entire keyboard, that is, no split. Sliders control the mix of parts, that is, the loudness for each voice. Voices are assigned to Montage mix channels:
Ch# Category Voice type Ex. Montage voice
--- ---------- ---------------- -------------------
1 Piano Acoustic Piano CFX Stage
2 Pad Warm Brass Motion Pad
3 Keys Electric Piano
4 Str Ensemble St Ensemble K
5 Str Ensemble
6 Pad Bright
7 Pad Warm
8 Pad Analog Dark ModulationPad
So, on Genos, choose voices like:
Part Genos voice Slider#
------ ------------------ -------
RIGHT1 CFX Concert Grand 4
RIGHT2 VP Soft 5
RIGHT3 KinoStringsWarmVc 6
The trick is to find and combine voices that you like. Try out a bunch of voices and make a list of the voices that you like. Then build your own layers.
That's all there is to it!
All the best -- pj
P.S. I play in church using MODX.