How to resize the PSAPTEMP

Dear expert,

I extended the PSAPTEMP from 30G to 120G (autoextended switch on by alter temfile) due to rebuild big indexes

Now the operation is finished , and i would like to resize it back to 30G

ALTER TABLESPACE PSAPTEMP ADD TEMPFILE '/oracle/QAT/temp.data2' SIZE 30720M REUSE AUTOEXTEND ON NEXT 10240  MAXSIZE 30720M;

ALTER TABLESPACE PSAPTEMP ADD TEMPFILE '/oracle/QAT/temp.data3' SIZE 30720M REUSE AUTOEXTEND ON NEXT 10240  MAXSIZE 30720M;

ALTER TABLESPACE PSAPTEMP ADD TEMPFILE '/oracle/QAT/temp.data4' SIZE 30720M REUSE AUTOEXTEND ON NEXT 10240  MAXSIZE 30720M;

I need to resize it or i need to drop the 3 added tempfile?

Could you share me the command?

Just one more question: there is for table OLTP compression, it will not ues the tempfile right?

Thank you!

Kate