The TradeServer Enterprise is automatically tracking what price markets you are using and it will download 1 month of price history by default.
To download more price history, you need to go to the upper right menu and select "History status". This will open a new page where you can see all the price markets listed.
On the right of each price market you got 2 options. One is to edit the amount of months you like to download and a second button to remove the market from tracking.
The maximum amount of months you can download is 36
There are a number of market listed which you never really used. These are defaults markets and they get downloaded to price conversion goals.