I hope we can write Custom Function which we can use in “expression” . I would like to write that function in JavaScript such as in writing Excel custom function using VBA.
If we have those, we can create long awaited arctan function our selves. Function arctan(x) in expression .
I also think many array based functions (map/filter/sort/aggregate…)can be written using those functions.
By the way, the term “function“ is already used in the expression, so I think using the same term for this logic-blocks will create confusions.