You can edit multiple URLs at once on the List view page. 

Select the checkbox for all URLs you want to edit and choose the desired action for the "With selected ..." drop-down.

You can batch edit the following settings:

• Delete URL
• Pause (or resume) captures
• Change Screenshot Width
• Change Screenshot Height
• Change Location where to capture screenshots from
• Change Sharing settings
• Change Capture Frequency
• Add tags NEW
• Add/Change User agent
• Add/Change click element
• Add/Chane hide element
• Add/Change hover element