1

Click on the Sentence

In the Speech section, click the sentence where you want to add a pause.
2

Place the Cursor

Move your cursor to the exact position in the sentence where you want the pause.
3

Select "Add Pause"

Click Add Pause from the menu that appears, then choose the desired pause duration.
4

Update Speech

Click Update Speech to apply the changes and regenerate the audio.
Need a longer break? Just insert multiple pause commands in a row. For example, adding a 1-second pause twice results in a 2-second break.