Save map objects to disk

Just passing by to say thanks for adding support to save map objects to disk, even if they are nested or mixed with vectors! I don't know how long this has been possible, as even the documentation seems to suggest otherwise:

You can store any type of variable in a Vars collection, although not all types can be saved to disk. If you want your variable to be persistent you should only use bool , int , string , date , currency or a Vector of those types.

Again, thanks.