Copy Study to New DATABASE not Machine

HI
Can anyone tell me how to copy Study like trend line fibs etc. to new database not new Machine. just new database.
My Old database Is not in good quality. so I create new database with high quality data. I moved majority of stuff to new database but unable to move Study to new database. I already read another topics with explains moving to new machine. but I could not find any topic related to just new database. can anyone help to do this?
thanks

Studies are stored together with data. The only way to bring them to the other database is to copy entire database folder. If you want data from "high quality data", you should just IMPORT those "high quality data" into copied database.

In order to purge the bad data you might also be able to make temporary use of the Tools -> Preferences -> Data configuration item:

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Import new data on every symbol.

Save the database, then revert the setting:
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then import the full history, and Save the database again.

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Yes, you can even combine this trick ("Limit number of saved quotations") with File->Save Database As... as it would create a new database without quotations but with all studies retained.

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Can you please Elaborate on Above tricks Step by step.

Try this

From my understating The above tricks take a so much time.