real time visual mode for back testing

Dear team, 

For developers who want to build the stragegy in cAlgo, we find that it is difficult to check the correctly of the code as there is no function like "debug".

For MT4, the have their stragegy tester which can how the our stragey open/close trade during the back testing period.

I hope this function will be consider and add to cAlgo soon.

MT4 stragegy tester:

https://www.youtube.com/watch?v=fZc8K15q9CE