https://www.curseforge.com/wow/addons/exorsus-raid-tools is needed for this to work.
Check second image for required formatting.
It basically returns the note line based on how many casts the boss did.
In the image example,
- 0 Cleansing pain casts would result in "Next: 1 + 2 + Causese + Somedude"
- 1 Cleansing pain casts would result in "Next: 2"
..etc
The "Cleave in .." relies on correct BigWigs / DBM Timers
Each weakaura inside the group works seperately. You don't need all of them.