It should be possible to preselect the alias as the default value to avoid confusing users with IDs defined as base elements.
The setting should be made user-specific.
Default Alias is also already requested in other votes:
http://feedback.jedox.com/forums/220460-jedox-feature-voting-tool/suggestions/31462456-option-to-set-atribute-as-default-alias-and-to-set
http://feedback.jedox.com/forums/220460-jedox-feature-voting-tool/suggestions/4547449-use-standard-alias-for-dimensions-in-pase-view
--> here it is even marked as "started", but this was Oct 2014 ..no results so far ..
On a per user and per dimension basis information about the last selected alias should be stored and retrieved, when opening a new view.
That would help users to work faster with their data.