I understand that the debugger mode will use the latest 200 bar (as I set it in the preference), however I actually want to debug the code during some period of time e.g. 2013-2014 for some reasons (my code got some errors only that period when backtest). Is it possible to do that ?
You can change the preferences to use as many bars as you wish, but they are always upto most recent bar.
For debugging errors that occur in certain date-range consider this: http://www.amibroker.com/kb/2014/09/29/debugging-techniques-part-1-exploration/
Thanks for your quick response. I guess to do that so.