How can I copy the entire list of coins from the “MarketsTable” to the buffer?

To do this, you need to click on the “Show Markets” button, open a separate “MarketsTable” window, stand on the bottom coin from the list, right-click on it in the additional menu and select “Copy markets above selected”. All coins from the top coin up to the selected one will be copied to the clipboard, after that you can copy them into notepad or Excel and use them for your needs.