How do I make a typewriter with waits, like in undertale?

I made a typewriter dialogue system, and i want it to wait like, 0.8 seconds every comma.

I have found no easy way to do this. please help!!!!!!!

Here is an example I made a few years ago.

dropbox.com/scl/fi/4ct91j3z54y3909ujr2ze/BBCode_Typewriter.c3p

is there a way to do this without having to put the dialogue in a variable?

It needs to be stored somewhere. You can use a local or instance variable, an array or dictionary, but you'll need to modify the code.