Firstly, I love the mod!

My problem is that I dont understand the interaction between the srtength grabbing, whitelist and blacklist.
I want it to grab based on strength, to grab the items in the grab list but to not grab the minecolonies building blocks (tornado pulled up my builders hut and when I placed a new on the reminants of the old had to be removed to rebuild instead of just repairing it.

Do the strength grabbing and grablist work together or is it one or the other?

Tornados and minecolonies.txt

They work together and make sure grab list use strength grabbing is enabled.