Would it be possible to Add a flag, for instance to the Mine and lightning block, to only allow a player to place them inside a field he already owns?

I want to allow my players to use these blocks, but would like to cut down on the amount of crying that comes with people getting randomly killed in the middle of nowhere.

Added 'allowed-only-inside' field flag. Which holds a list of fields (titles) that this field can be placed inside of, the field will not be palceable outside of the fields in the list. (i.e. Adding "allowed-only-inside: [City Protection, Peace Keeper]" to the GodStone would make it so it could only be placed inside these two types of fields.) Note: The no-conflict flag must be used in conjunction with this flag. Note2: This is not a parent-child relationship for subplots.

Coooool