I did not realise this is actually just a chart blow up, it does not allow to zoom in a portion of the chart.
I cannot have any Excel add-ins installed due to network security at the workplace (understandable...) and I must develop a chart tool where it is possible to highlight any section of a chart and "zoom" into this section, which means:

1. Identifying any series currently on the chart
2. identifying the x-axis date/time values boundaries highlighted from the zoom area on the chart
3. filtering the pivot table accordingly (I am working with pivot tables > pivot chart from a recordset extracted via ODBC VBA connection)

I have difficulties finding such information on Google.

This tool is definitely a very nice tiny chart expansion tool

Any suggestion would be greatly appreciated.
Thank you