Do you want to place a Chart objects (OBJ_CHART) on the chart and use it as conventional chart? It's possible.
This Expert Advisor is a demo of working with OBJ_CHART objects as conventional charts. You can set custom color settings, attach indicators etc. The only thing you need is the handle of OBJ_CHART object. Using the Chart Operations you may add and delete indicators (ChartIndicatorAdd() and ChartIndicatorDelete()), set chart Period, Symbol etc.
The EA_OBJPROP_CHART_ID Expert Advisor, does the following actions: