Do I have a keyboard shortcut to click screens in zipBoard?

To take a quick screenshot while reviewing, use the keyboard shortcut 

For Windows(Web URL file Type)

1. Cntrl+Shift + 1. For visible page screenshot 

2. Cntrl+shift+2: For Full page screenshot.

For Mac

1. Command+Shift + 1. For visible page screenshot 

2. Command+shift+2: For Full page screenshot.

For other File types, you can use Ctrl+shift+1/Command+Shift+1 for taking a screenshot

This will snap your currently active review mode screen and add it as a screenshot to the screens list. Now you can annotate it share feedback.