Oh wow.I did it! Not exactly i wanted but it works😀

fps=1.0/thisComp.frameDuration;

temp = thisComp.layer(“Text_Suchbegriff”).text.sourceText;

frameInterval = 3;

f = timeToFrames(time-1.5)

k = fps * frameInterval;

x = temp.length;

y = 100/x

s = y/2

value = (f*s)/frameInterval

Hi Dan! Thanks for feedback.How i understood i need to change value of selector every 3 frames to add a half opacity of new letter.I worked with expressions like this and i didnt find anything about it in internet.

Thank you for your help!

Hi Guys! I have that task “We need the text to appear frame by frame like this: 1 frame -1 letter 50%, 3 frame 1 letter 100% opacity, 3 frame – 2 letter 50% opacity, 4 frame – 2 letter 100% opacity and so on. It has to work with every word length.”

I dont know how to work with expressions,can someone help me please?How can i animate this? Thanks)