Edward,
Right now everyone is running fully functional, unrestricted version, but lets say once the restriction kicks in for the free accounts, yes, you can still save/load the templates. You can even do the export/import, as long as its encrypted, so it can only be used on your own account.
Candle Countdown - On the chart's Ribbon - VIEW tab, OPTIONS button dropdown
Data sources: https://www.medvedtrader.com/www/frontend/datasource (note the 3 different tabs)
Futures - Yahoo will work for delayed quotes.