@MID_ACN there is no straightforward way to do it.
Option#1: Forking [through UI]
https://community.cloudera.com/t5/Internal/How-to-change-the-owner-of-the-project-in-CML/ta-p/360168
Option#2: Projects table update [requires cli access to the underlying pod]
step1: connect to postgres DB
kubectl exec -it $(kubectl get pods -l role=db -o jsonpath='{.items[*].metadata.name}') -- psql -P pager=off --expanded -U sense
step2: get user IDs, project ID
select id from users where username='<old_owner>';
select id from users where username='<new_owner>';
select id,creator_id,user_id from projects where name='<project_name>';
step#3: update projects table
select id,name,user_id,creator_id from projects where project_id='<project_id>'; #validate before update]
update projects set user_id='new_owner_id', creator_id='new_owner_id' where project_id='<project_id>'; #update