I found a script that clients can use if they want their charts to “Float”. One limitation of MT4 is that charts cant be moved or held on a different window.
Check out this link below, halfway down is a zip file with the files.
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Floating Charts
This can help to float the charts to other monitors. I made a short video on how to install it to the MT4 platform: https://d.pr/v/HZPYsC