Flow really needs some basic math functions improvement. For example, the ability to do add/subtract/multiply/divide for more than two numbers. Even a sum function so we can do:
sum(var1, var2, var3, var 4, var5)
add(var1, add(var2, add(var3, add(var4, var5))))
All these connectors are great, but Flow still lacks so much basic functionality for math, strings, dates, etc. How about a little investment there?