Hi,
I really enjoy that you can get a price alert notification if/when a stock your interested in hits a certain price, But it would be 100 X more Awesome if when it hits that price it could auto buy the stock (at said quantity) as well.
If it falls further ce la vie i am holding for the long term anyway just got discount on what I was happy to pay anyway.
You can do that using a Limit order.
Oh… Thank you for the help 
I guess this doesn’t need to exist as a request if its already a feature.
(it will not let me delete so i guess its staying till a mod can fix lol)
Oh wait but you cant use a “limit” buy with fractional shares? Just tried with Diageo.
see this, it was the answer back in January:
So it is also coming