Table Title Change

You can change the TableTitle title tag to show Chart 1, 2, 3 here:

Format > Paragraphs > Designer > Numbering & change the word "Table" to "Chart: on the Auto-Number format line, Click Update All.

But maybe it would make sense to create a new ¶ tag called ChartTitle, and then set up the numbering as you see below. That way you keep the TableTitle tag intact for use on tables, and can number your charts with their own tag. My documents typically have both charts and tables, so I need to have one of each.

FYI—The T: and C: at the beginning of each auto-number format line is a series label, so that Fm knows that you have both a table series (T:) and a chart series (C:) and that allows the numbers increment independently of each other.