Menacing Bane

You can use your bane class feature to imbue a melee weapon with the menacing special weapon ability (Advanced Player's Guide 288) instead of bane. You can spend a swift action to switch between the two special weapon abilities. Doing so otherwise works according to your bane class feature.

If you have the Double Bane feat, you can imbue each weapon you wield with either bane or menacing. No single weapon can have both.