Thank you for your response. Actually, Spreadsheet does indeed seem to have the ability to create charts at runtime as I figured out how to do it, and connect it with the selected range as well. So, that has been solved.
However, I have discovered an issue. I see that spreadsheet received an update giving it support for the COUNTIFS formula in 2016, however, I have tried out that formula many times and it never works properly. It is only counting the last written criteria and ignoring the criteria that comes before it. For example, if you have two criteria: COUNTIFS(A2:A7,"First", B2:B7,"Second"), it will return the count of cells from column B where "Second" is listed, regardless of the criteria from column A.
Is this a known issue? If so, is there a known fix?
Thanks!