Here is how I did it and it sounds great.

Make a song as follows:

Key of G
1st measure G & D7
2nd measure G
3rd measure G..,G.. and G.. (4th beat is empty.)

I used the style _BGMA_B.STY for a bluegrass sound and set the tempo to 120.

I have not tried other styles so I don't know if this would work in your case or not.

IMPORTANT: The 2nd measure I changed to 1/4 timing. 1st measure stays at 4/4 timing. I am assuming that measure 3 also gets changed to 1/4 timing from the modification I made in measure 2.

IMPORTANT: I also changed the tempo of the 3rd measure 100% from the normal 120 BPM to 240 BPM to get the Cha Cha Cha sound on the chords G..,G.. G..

I also set the timing of the 1st measure at 120 using the drop down so if you loop the song, the 1st measure is always reset to 120. Otherwise it will continue to just play at 240 after being set there from the settings in measure 2.

When I play this short riff, the Cha Cha Cha is right on the money.

BIAB2025
Windows 10 Pro
WA6NCB
No Longer on a Crappy Laptop!