How to download only one piece of file at a time with /tool fetch and put it inside a variable

RouterOS Scripting
12

Yes, Is exactly what I “invented” this method for.

This topic and this:
http://forum.mikrotik.com/t/importing-ip-list-from-file/143071/1

Are joined together on a project I have to load external (black)list and import on MikroTik, no matter if is a list of DNS, IP or IP/prefix