Hello Yoan,
Thanks for looking into this and I have tried what you suggested but it does not return what I had in my mind. At 0001 I was expecting the code return test2. I expect to see a new word every frame.
Many thanks again
t=thisComp.layer("test1-test2-test3").text.sourceText;
word=t.split("-");
n = Math.floor(time);
word[n]