"Indexing for full-text Search" option not available for custom section in 7.17.3.1377 (on-site instance deployed locally)

Team,

Trying to look for the "Indexing for full-text Search" option for a custom section in 7.17.2.1728_SalesTeam_Softkey_PostgreSQL_ENU and 7.17.3.1377_SalesTeam_Softkey_PostgreSQL_ENU packages deployed on-site. Though I find "Indexing for full-text Search" option in 7.17.3.1377 cloud instance, I am not able to find the same options in the site locally hosted in my laptop. Is there a way by which we can enable it?

Screenshot attached.