First, add subtitles.
Open the love clip on the computer and import the shady video that comes with the software. Under the "Subtitle Special Effects" panel, double-click the video preview area on the right and enter the text in the pop-up box.
If you want to add special effects to the subtitles, select the text, and in the list of special effects on the left, check the subtitle special effects. In the parameter settings on the right, modify the font, size, arrangement, special effect duration, etc.
Second, quickly keep the subtitle special effects at different time points exactly the same.
Select the subtitle, right-click the mouse button to select the shortcut key of copying object: Ctrl+C, locate to a new time point, right-click the shortcut key of pasting object: Ctrl+V, double-click the subtitle, and modify the text in the pop-up box.
Third, add commentary audio.
First record a commentary audio with your mobile phone. Then under the audio panel, click "Add Audio" in the lower left corner, and in the pop-up "Preview/Intercept" box, insert the recording clip into the specified location.
PS: By selecting subtitles, you can locate the time point of text and voice synchronization with one click.
I hope I can help you!