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It is unlikely the option is available in Creo 4. You can try to manually add it with a text editor to your config.pro to see if it was a hidden option in Creo 4, but I don't think it was.
This config option is not part of Creo Parametric 4.0 M150. It does not appear that this option was ever in Creo 6 either as it is not in Creo 6.06 release.
You would not be able to use this in builds earlier than when the config option was added. From reviewing config files, it appears that this was added in Creo parametric 7.
Hi,
according to https://creosite.com/index.php/configuration/config-pro-option-search/all-config-pro-options-creo-parametric-4-0/ page the option mentioned by OP is not implemented in Creo 4.0.