Possibility to group and sort dimensions

For now, dimensions are displayed to the dashboard designer in the alphabetic orders of the tables / columns names.

I would like the datamodel designer to have the control over sorting / grouping the dimensions.

Ex : 3 tables

1. Address
   • Number
   • Street
2. City
   • City
   • Zip code
3. Country
   • Country

Currently : the list of dimension will contain 3 groups: Address / City / Country The columns in each will also be sorted by alphabetic order. 

Expected : the datamodel designer will choose how he want these columns to be displayed, for instance, under one single group :

1. Address
   • Number
   • Street
   • Zip code
   • City
   • Country