So I created a text object and display it,
...but if its output changes the old text doesn't disappear.
How to refresh the chart to remove the old text?
Update it with
You can set (or get) several variables.
Description of the object (the text contained in the object)
text of a tooltip. If the property is not set, then the tooltip
generated automatically by the terminal is shown. A tooltip can be
disabled by setting the "\n" (line feed) value to it
string modifier=level number
The name of BMP-file for Bitmap Label. See also Resources
string modifier: 0-state ON, 1-state OFF
Symbol for the Chart object
For you i believe it's