The current copy tag feature does wonders, but only one tag at a time can be copied.
Summary
When trying to copy a tag, ask user weither he wants to copy a single tag or a list of tags (currently tags can only be copied one by one).
Currently
At the right of each tag, users can open a "copy tag" menu, chosing where (website and container) the tag should be copied


Example of UI with this enhancement
(first screenshot doesnt change)

Default copy tag menu :

Copy tag meny when copying multiple tags :

The current copy tag feature does wonders, but only one tag at a time can be copied.
Summary
When trying to copy a tag, ask user weither he wants to copy a single tag or a list of tags (currently tags can only be copied one by one).
Currently
At the right of each tag, users can open a "copy tag" menu, chosing where (website and container) the tag should be copied

Example of UI with this enhancement
(first screenshot doesnt change)

Default copy tag menu :

Copy tag meny when copying multiple tags :