Two more questions:
1) The testing script TradeTest.c does not show the button "Update Stop". Is there any setting in the script which makes this button appear again?
2) Regarding BrokerAsset call: if the asset data is available but the asset is currently not tradeable, which value should be returned? Docs say "1 when the asset is available and the returned data is valid", so does "available" mean "currently tradeable"?