good to see you here in the forum! I read that you finaly bought a Paca... Excellent choice!
There are so many ways in Kyma to generate triggers. It all depends of what you want to do with it.
!KeyDown is a HotValue which is generated each time you press a MIDI Key. You can send several messages to !KeyDown for example: !KeyDown gateWhen: (!KeyNumber eq: 72) to only trigger when MIDI Note Number 72 is pressed.
bpm: on the other hand is a message. You can send for example the message bpm: to the number "one" with an !HotValue as an arrgument...
(1 bpm: !BPM) countTriggers
...which counts the number of 0 to 1 triggers.
A sound and envelope, a global controller almost anything what changes the value from under zero above zero or from zero upwards could directly be used as a trigger in Kyma.
Bascially a trigger in Kyma is a condition when a value changes from <=0 to anythin above >0.
Do you have an specific problem to solve?
All the best
Chris (from dNp)