There are several ways you can edit table charts in Heap.
To update a table header (aka the title of the chart) click the three dots icon next to the current label and click Rename.
The field will update to be editable. Once you’ve entered your new label name, click Enter to save.
To update a value within the table, hover over it until the pencil icon appears.
The field will update to be editable. Once you’ve entered a new value, click Enter to save.
Note: the headers for multigraphs and date ranges cannot be edited.