Dear Wolfgang,
I read your detailed explanation about the difference between "overlay" and "layer".
Here is your sample code using layer.
\starttext
\definelayer[test]
\setlayer[test][x=3cm,y=6cm]{ONE}
\setlayer[test][x=8cm,y=2cm]{TWO}
\setlayer[test][x=2cm,y=9cm]{THREE}
\flushlayer[test]
\stoptext
It shows ONE, TWO, and THREE in the same page.
I'd like to show each word one by one when I click, so I tested the following code.
\setupinteraction[state=start]
\usemodule[pre-60]
\starttext
\definelayer[test1]
\definelayer[test2]
\definelayer[test3]
\setlayer[test1][x=3cm,y=6cm]{ONE}
\setlayer[test2][x=8cm,y=2cm]{TWO}
\setlayer[test3][x=2cm,y=9cm]{THREE}
\StartSteps
\flushlayer[test1] \FlushStep
\flushlayer[test2] \FlushStep
\flushlayer[test3] \FlushStep
\StopSteps
\stoptext
This code produces 3 page output one word per each page. There is no need to click the mouse.
I may misunderstand about the layer.
However, is there a way to show each word one by one in the same page when I click.
Best regards,
Thank you.
Dalyoung