As explained above order importing is not a feature of the the platform.
If you have the data in that format:
there are several approaches:
Make a custom data feed with it containing only 2 fields
trigger (or any other name you wish)
In this case you would add the data feed to the system and could at each moment in time and synchronized with the data read if an order has to be executed or not
Read that input with something like a pandas.read_csv module and during each call to next in the strategy, look for the corresponding datetime index in the dataframe to see if an order has to be executed or not.