Of course, here’s the link: Unreal Engine Issues and Bug Tracker (UE-2114)
Should we get people to vote for this, to bump up this request priority? 
This is kind of a strange thing to lack in what’s supposed to be a (visual) scripting language.
Maps are almost as fundamental as arrays. UE4 should ship with some kind of written scripting language built in, maybe like Unreal.js… Because blueprint doesn’t cut it and C++ isn’t appropriate for everything (many things it isn’t)
I for one love blueprint for UI and some other things but features like this are essential for many games.
If you’re interested in seeing an issue fixed, or a feature request implemented, it’s always worth voting for. However, keep in mind that this will not guarantee its implementation, but it is a good gauge regarding the amount of interest behind a particular request.
I seriously need associative container too. Working with the array kills my perf 
The issue doesn’t seem to be public anymore
Sometimes they need to be reset. Give it a shot now.
Let me know if it works.
FYI This feature appears to have been implemented in 4.14: Map Control | Unreal Engine Documentation
Interesting, but I’m not finding it as a selectable type when creating a blueprint variable. Were you actually able to find these documented features anywhere in 4.14? Perhaps the documentation went up early?
The fix version of the ticket is listed as 4.15, which means you should be on the lookout for the feature in the next release.
Let me know if you have further questions.