Minecraft – Is it possible to disable the ‘Block Placed’ message when using tellraw /setblock

First, place 4 repeating command blocks and two levers as shown:

Next, type the following commands into each command block as numbered (replacing x1 y1 z1 and x2 y2 x2 with the co-ordinates of the two corners of your map):

1: /fill x1 y1 z1 x2 y2 x2 minecraft:air 0 replace minecraft:stone_button 5
2: /fill x1 y1 z1 x2 y2 x2 minecraft:air 0 replace minecraft:stone_button 0
3: /fill x1 y1 z1 x2 y2 x2 minecraft:air 0 replace minecraft:wooden_button 5
4: /fill x1 y1 z1 x2 y2 x2 minecraft:air 0 replace minecraft:wooden_button 0

These commands, when activated, will instantly replace any buttons in the specified area with the specified rotation with air.

To prevent buttons from being placed on top of blocks, turn on lever A. To prevent buttons from being placed underneath blocks, turn on lever B.

Demonstration (note that the buttons on top and on the bottom of the blocks are replaced, but not the ones on the sides):

The text portion should be specified in JSON format.

Example command:

/setblock <x> <y> <z> wall_sign 4 replace {Text2:"{\"text\":\"Room\"}",Text3:"{\"text\":\"Two\"}"}

I recommend visiting the wiki on signs, specifically the block entity section for more information.