Replace one block for another without deleting the first.

[Curithwin]

There are times I would love to have this check box in the advanced build mode, or set to a combiation key and mouse click like Ctrl+left click. What this would do is to change the block your pointer is over for the block you have selected on your hot bar.

This would allow building nice coloured vessels more quickly without using SMedit and change components on the fly.

 

[XxDanclarke96xX]

or just hit right click then left click quickly to remove whats already there and place what youve got selected

 

[SnakeMittens]

That doesn\'t work when the block you\'re replacing is only attached diagonally.