Gyazo Menu
This feature is only for Mac.
By default, Gyazo Menu will automatically reside in the top menu bar when you start your Mac.
From here, clicking on the icons for full screen capture, window capture, or partial capture will launch the corresponding tool, allowing you to use different types of capture.
Click 
icon for the advanced settings:
icon for the advanced settings:
In the advanced settings, you can configure various settings.
Countdown for 3 seconds before video recording
Stay Gyazo Menu resident on Mac
Copy the URL of the image after capture