Wall Replacer is a tool from the toolbox. It allows you to replace a wall with another block including air. If you have the option "Recond block addition" active then those changes will be automatically recorded too. Independent if you add actual blocks or air.

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1. Create a new world having Structure Templates activated.
2. click f1 to open the command prompt.
3. type get toolbox in command line.
   verify: user will get a red tool.
   
4. Click right while having the ToolBox in your hand.
   
5. Open Structure Template Tools drop-down menu.
   
6. select StructureTemplate: WallReplacer.
   verify: user receives a green tool.
7. press close to the exit from toolbox.

1. Complete part 1 first.
2. Right-click with the wall replacer tool on hand.
3. select replace: wall from the drop-down menu.
4. select desired core material from with menu which will replace the material of the given wall.
5. click replace wall and the change will be applied to the targeted wall.
   Verify: the wall will be replaced with other chosen material.

User can replace the air in front of the wall with the wall of the chosen material.

1. Click right with wall replacer on hand.
2. select Air_infront_of_wall from replace menu.
3. Choose any wall material from with drop-down menu.
4. click replace wall once you are done selecting the material.
   Verify: A new wall of the same size will be formed in front of the targeted wall.

User can replace the given wall with another wall with border.

1. Click right with wall replacer on hand.
2. Select Wall_With_border from Replace drop-down menu.
3. choose any desired wall material from with button.
4. click Replace wall once you are done making choices.
5. The wall will be replaced with the selected item adding an extra border to the wall
   Verify: You can see an expanded wall made up of your desired wall material