Adding multiple keyframes

[Marcella24164503auin]

Hi all,

I would like to add a typewriter effect to a text on multiple lines. I am trying to add a new source text keyframe for each frame to do this. See this video method 1: EASY Typewriter effect WITH BLINKING CURSOR | Premiere Pro 2023 (youtube.com) 

When I try and do it, I get the following error: 

Can you help me to fix this? I have already resetted the preferences on premiere pro, but did not help.

Thank you!

[MyerPj]

Do you have keyframes? If not, go ahead and do it.

[Ann Bens · Accepted solution]

Left button generates above message. Hitting this button will delete the animation

Right button is for adding and removing keyframes.