Request for 2 additional variants of the High Tech Door...
1. Locked when Redstone power is applied to the lower middle block - Catch turns red instead of default green, Can only be opened by hand when green - adding power closes and locks it.
^ Useful for securing labs, air locks etc.
2. Redstone powered only - Catch is red unless power is applied to the lower middle block - Can't be opened by hand.just like an Iron door.
^ Useful for Elevator/Lift shafts, securing vaults, etc.
I hope these could be added, and/or the Door Factory could be adjusted to make the custom option variants with both the High Tech and the other Big Door 3 x 3 Variants.