Looking Advice for the not so young, about db structure spre

Greetings...

By unfortunate lack of attention, when a db exhausted original volumes, I created an ADD.st file so to extend capacity on db.

but I ended with this structure:

d "tap":7,64;8 /home/DB/dwh_7.d1 f 1250048
d "tap":7,64;8 /home/DB/dwh_7.d2 f 1250048
d "tap":7,64;8 /home/DB/dwh_7.d3 f 2096960
d "tap":7,64;8 /home/dwh_7.d4 f 1888896
d "tap":7,64;8 /home/dwh_7.d5 f 1888896
d "tap":7,64;8 /home/dwh_7.d6

I missed the DB part on the path...

What are my options to move back those extents into the DB directory, where rest of database resides?

TIA

Jorge