Is it possible to parse data from an open page in the browser to the clipboard?

Question

Parsing

For analytics, I periodically save lot data from the ad site into a table. 5-7 indicators. Manually alternately copy-paste into the table. Is it possible to write this data to the clipboard in one click through the bookmarklet or otherwise sequentially (the data is only text). A third-party site will not see all the data - some are available only to logged in users.

If possible, then an increased level of complexity: is it possible to take pictures from the ad in addition to text data? I work with tables online, there is also an "attachment" field where images are attached.

I will be glad to any tip on the existing solutions to similar problems.