Input the amount of shares, then change market order to limit order, and wait, if it goes down....
Limit order allows you to change the number, however
my institution doesn't allow me to pinpoint 0.00115....
I need to either use 0.0012 or 0.0011....
If it's that close to me,
it really doesn't matter, but some investors squeeze that fraction lol....
If you choose the market price,
it always goes through....
I've got an order in right now @0.0011 still waiting and market closes soon....
But fidelity let's investor's
set their orders at 5am,
so if not today, tomorrow, another day....
Hope that helps....