Upload something you like to watch, or you love something from YouTube, it a gif file (Example: .gif
Such as https://j.gifs.com/oVyZlz.gif) from your device or any website you go to.
Then, use time stamps from the beginning to the end, but be careful, choose wisely, it only saves up to approximately 5 seconds.
And, done, your GIF template is saved and will automatically add one caption for you.