How to convert tablespace's segment space management

The Segment Space Management of custom tablespaces is ‘Manual’.
I want to convert the Segment Space Management from ‘Manual’ to ‘Auto’.

I confirmed the database document. If convert the segment space management, the tablepsace need to be re-create.

How To Convert Tablespace from Manual To Automatic Segment Space Management (Doc ID 860310.1)

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To Convert the segment space management mode of a tablespace , you have to re-create the tablespace by Either :

Export & Import :

Move Objects Manually to the New Tablespace with Automatic Segment Space Management :

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BUT Export/Import for partial EBS tablespace data is not certified in EBS.
Do you know how to convert Segment Space Management for EBS DB?