Filled WorldGuard custom flag. Block Restrictor

Plugin category: World Management

Minecraft version: 1.10.2

Suggested name: WGBlockRestrictor

What I want: I need this plugin working, or at least a portion of it: https://www.spigotmc.org/resources/worldguard-block-restricter.28402/

That plugin is not supported, and that is literally one of the most useful flags.
I need this flag to be built for WorldGuard v6.2. The issue with the current plugin is that it does not support item_damage. so I cannot select a specific wood they are allowed to chop, such as 17:1. I need t0 be able to specify multiple blocks to allow-break. For instance, if I put wheat:7, it will only allow them to break fully grown wheat in a farm.

Please note that I only need the 'allow-break: overwrite blocks specified by "deny-break"' flag. If you cannot do all of them, at least do that one!
I need them to be able to break certain blocks in the region. That is my need.

Also note that WorldGuard has implemented a custom flags API (check with the one in v6.2), which makes that WGBlockRestrictor plugin's dependency obsolete!

Ideas for commands: It is a flag.

Ideas for permissions: []

When I'd like it by: ASAP! This has been holding back production.