stmRenameActivity
Rename an existing activity. The activity name should be a unique name in the chart. For example: A1.A2 if there is more then one A2 in the chart.stmRenameActivity (stm_context, chart_name, unique_activity_name,
new_activity_name)
See Function Status Codes for the list of possible values.
Input/Output Argument Type STM context descriptor that was returned by stmInitImport