I have no idea what you just said.
(While editing code, position the cursor) on (a class) instance (and press) tab (to swith to) autocomplete (mode and) list all (members of that instance by clicking) on tab (again).
(e.g. foo.[TAB])
can list all possible operations available on that instance -- in other words, you don't need a fluent interface for this.
I have no idea what you just said.