Version 1.4, The first big one.

This release is the biggest one yet,
(other then the release.)

Added:

An expression to get the block clicked.
An expression to get the item associated with a block
An effect to remove furniture
An effect to replace furniture (if there is furniture at a location, this effect will remove it and place another furniture at the same place) Thanks for the suggestion!
An effect to replace a block (if there is a block at a location, this effect will remove it and place another block at the same place)
A condition to check the action of which the player interacted with the block with
A condition to check the face of the block the player clicked on.
A condition to check the block clicked.

Removed:
Play Break Effect effect, (may return)

Updated:
You may now specify what item you want in the "Is ItemsAdder Item" condition

That's all.