Navigational Attribute to Display attribute !!

Hello ,

While adding attribute KHINR , I have accidentally made navigation attribute (TIP) as Display attribute  and transported with transport T1 . Now all the cubes which use navigational attribute ((flagged for use) are deactivated in QA system . If i transport as it is today to production , all the cubes will be deacivated . I need to set TIP back as Navigational Attribute in 0Costcenter. 

Thinking loud :

1. make TIP as navigational attribute again and then Copy all the objects of T1 create a new Transport T2 .

2. Abandon T1 transport in QA  and move T2  from DEV -QA -prod .

Will it work ?  whats the right way of doing it ?

Yours thoughts are much appreciated.

Regards

Ram