Update Columns in several Chart Sheets

I have several tests for 23 students. Each student has a chartsheet in its own tab. Currently the student's name is in Column A and Columns B:F have the scores.
Now I have added a score in column G.

How can I update the Columns.

The Chart Data Range shows the following for one of the students. Details is the name of the tab that is being charted.
=Details!$B$6:$F$6,Details!$B$18:$F$18

I want to change the range from F to G in all chartsheets.

Can someone please help me with a macro that would do this?

Thank you.

Attach a sample workbook (not a picture or pasted copy). Make sure there is just enough data to demonstrate your need. Include a BEFORE sheet and an AFTER sheet in the workbook if needed to show the process you're trying to complete or automate. Make sure your desired results are shown, mock them up manually if necessary.

Remember to desensitize the data.

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