mapData - between domains with different hierarchy

Hello,

1. When we use "mapdata -d SrcPath -dest destPath", will it copy all user rights from one side to another (if I have already created the users in the dest domain) ?

2. If i changed the hierachy of my dest domain, but I still have the same base intersection of Measure A and the dest domain Measure A.

For example:

Source Domain: Measure A - item/store/day

Dest Domain: Measure A - item/store/day

using the parameters {-db dbName {-array arrayName} I will be able to map data between those measures or any change in the hierarchy will impact in the mapData between my domains even though the change in the hierachy is in a higher level ?