Hi,

There are two datasets for US Futures. In the Algoseek Dataset  under About > Supported Assets, there is a comprehensive list of all supported assets, but I can't find such a list for the US Futures Security Master. Where is it? 

More generally, what the difference between the two datasets and which one is loaded by default when calling the AddFuture() method ?

Does the Algoseek Dataset also support continuous contracts?

Lastly what the easiest way to check for how many years of data are available for a particular symbol in each datasets ? For example , by default, when loading the Futures.Indices.Russell2000EMini, I get data starting in June 2017, is it possible to get more data?

Thank you for your help !