Been trying to make a pie of
DHT/RC/NNA/FRO
And none of them appear to be add - able.
Stocks and ETFs can only be added when fractional shares are enabled.
Is there a reason why not all equities are not availaas fractions? 
They are working on this. It was originally estimated that all would be fractional by the time pies were released but seems that estimate was a little too short. More get converted to fractions each Friday, if you throw a request into the requests area for ones you want as fractions they may speed those particular ones along. Or they may not.
Why do they need to be fractional a pie should still work on a 1 share / 1 share / 2 share / 3 share or whatever ratios! Its still a pie!