Splitting a line:
Step 1: Place your cursor before the word of the sentence you would like to come on the next line.
Step 2: Use the keyboard shortcut Shift + Enter to split the line.
Adding a new line:
Currently, there is no direct way to add a new line, so you can split a line and edit or delete the text in the next line.
Merge 2 lines:
Merging will only work for lines in the same scene.
Step 1: Place your cursor before the word of the sentence you would like to merge with the previous line.
Step 2: Use the keyboard shortcut ↑Shift + ←Backspace to merge the line.
Make sure to click on Apply Changes once you make your edits and preview your video!