If you are frequently using Amibroker templates then probably you would noticed that changing parameters in one chart will reflect the same on other charts which uses the same templates. While using the same templates for multiple charts amibroker chooses the same Chart ID. Chart ID is an index to AmiBroker’s internal chart table. So knowing the Chart ID, AmiBroker knows everything about the chart. The Chart ID uniquely identifies the chart.
Chart parameters are keyed by Chart ID. While Applying a particular template to multiple charts same Chart ID is used in all the charts. So changing the parameter will reflect in other charts as well. whereas right click and inserting, drag and drop or double click and applying the charts will maintain separate parameter for different scrips.
Another way of providing independent parameter to each and every chart of same template is using the copy and paste function as described in this short video tutorial.