Question Enabling Pistons in Factions 2.7.5

I'd like to enable pistons pushing blocks in claimed land, however after scouring the internet for hours, and looking at the config file for the Factions plugin, I can't find anything on how to do this.

In older versions of factions, the command was / f config pistonProtectionThroughDenyBuild true, however this does not work anymore, and I believe I have to change it manually in a config file.

This isn't adding anything, it's just changing a flag. I need help finding the flag.