Function ripple start to playhead About "caption"

When I use Function ripple "start to playhead",
Caption is overlaped with new drawed Caption.
How do I delete previous subtitle and draw new subtitle?
Don't say it's a basic feature, right?
If you want to answer, "just cut,choose the previous things and erase it," just pass by.
I'm not asking to you.
If you're going to say, "I'm using it well anyway," just pass by.
I'm not asking you to do this.
Caption is overlaped with new drawed Caption.
How do I delete previous subtitle and draw new subtitle?
Don't say it's a basic feature, right?
If you want to answer, "just cut,choose the previous things and erase it," just pass by.
I'm not asking to you.
If you're going to say, "I'm using it well anyway," just pass by.
I'm not asking you to do this.