I have it set so no one can damage their buildings  but how can I have it that players that place items can destroy their own items

what my zone has 
/zone autolights true

/zone lootself true

/zone nodecay false

/zone noplayerloot true

/zone pvegod true

/zone undestr true

I have some toxic players on my server not like to read everybody but I want new players they're trying to learn the game to have an area where they can practice and slowly Adventure out of the zone but I need them to be able to break down pieces of their base but not allow anyone else to