Tools
The Multipart is a feature that allows you to move, scale, rotate blocks, and stack multiple blocks to the same position.
Press Ctrl+F to change the targeting block to the multipart. Then press Ctrl+F again, or right-click it with empty hand, you can open a GUI to configure the multipart.
Right-clicking multipart with block can duplicate the block shape to the multipart.
In multipart GUI, you can drag or scroll to adjust the view of displaying multipart.
You can click buttons on the left the select the layer that you want to configure, or click "X" button to remove that layer.
The changes you made will be applied immediately once you leave the GUI, except you click "Cancel" button to cancel all changes.
Chisel allows you to create corresponding block shapes like stairs or slab from solid block.
Left-clicking block will cycle shapes from the block. Picking block will set the shape you want to create.
Here shows the base block and all the shapes currently you can chisel to.
The texture is temporary
Brush is a tool that you can pick or mix colors from world. Click the "pick" button with brush on a block, the brush will have that color. If the brush already has a color, if will be mixed with the existing color.
- Hold ctrl: Disable color mixing
- Hold shift: Disable getting color from Vanilla's color tinter. Pick color directly from screen
Picking to the air will clear the existing color.
Right-clicking on a dyeable custom block, the block will be recolored.
Mallet is the safe version of Debug Stick that allows you to easily change block states in survival mode.
From Minecraft Wiki:
The debug stick can be used to change block states. Hitting the block allows players to select the block state key they wish to change, for an example, switching between the conditional and the facing block state keys for a command block. Using the block allows them to cycle through the valid values for the block state key, again as an example, the player can make the command block face, down, east, north, south, up, or west if they chose the facing block state key. Sneaking while hitting or using cycles through the block state keys or values in reverse order.
You can only use mallet on some building blocks like fence, glass pane, or blocks from Kaleido.