WP All Import on "[Plugin: Import any XML or CSV File to WordPress] Importing topics into single forum parent"

I have forum discussion (topics) from previous website & I would like to move them to a new site. How can I move them all into one same forum parent? I have tried to import the data into topic but there is no selection for parent forum.
Tq

https://wordpress.org/plugins/wp-all-import/

Hello melurdotcom.

You can select the post parent in the "Other Post Options" section of the import. If that doesn't work, please open a support ticket about this issue at http://www.wpallimport.com/support/