HS.Trans use for custom dimension members

Hello,

Late to the game and just discovered this forum.  I posted a general question yesterday outside of the community so apologies if this is a repeat.

I am trying to use HS.Trans on a custom dimension member.  We already use this for base members of this dimension however I am trying to override the default translation for a 'parent' custom member.

The reason for this requirement is because we have instances where the custom member determines whether the account (a balance sheet) translates at ClosingRate or AverageRate.  But the parent of that custom member must always translate at closing rate.