How to re-enable block destruction by explosions

Currently, on DiamondFire, there isn't a way to easily enable/disable tnt explosions. There is another way though, but that is a bit tedious. First, on 'Explosion' event (I don't remember exactly what its called, but I believe its an entity event) you should place a repeat on list. Enter any variable in the first slot of the chest and a game value in the second. The game value should be 'Affected Blocks' (again, not exactly sure what its called). This should act as a list of the affected blocks in an explosion. Now, the loop will run through that list and you can do whatever you want with those blocks. If you want to make them explode just use the game action 'Break Block'. You can also add particles, or maybe even block physics. Its all up to you!