Hey Asser,
Glad to hear from you again. I understand totally what you want to do and actually after discussing it with Mr Popov, we have come with a solution for you.
Before you download the data from the App go to Settings. From there you can set the max bars and Server Name. Here you can write the name of your first broker:
Then drop the data in EA Studio. You can do the same with another broker or even more. There is no limitation.
As far as you change the name of the Server, EA Studio will recognize it as a different Historical data. And then for each one, you can modify the Symbol settings.
Let me know if that makes sense and if I succeeded to explain. If not, tomorrow I will find time to record a quick video about it.
Cheers,