Custom Offline Charts. Help!

 

Hello everyone,

I am looking for a way to customize the time brakets in offline chart. For example to remove the data and leave only everyday from 10:00-17:00. So overall chart will be showing a live data only for the selected time brakets. Problem is that it must be done with the standard timeframes 1m,5m, etc. This is to make some sort of stocks looking chart, stocks are commonly only few hours a day trading. Thanks. 

So basically, i just need somehow to erase the data from a .hst file.