You need to be in creative mode in order to input commands into the command block.
You can place blocks but not make them.
Right Click
No, you can only place and destroy blocks.
press 'command' if i were you, i change the minecraft settings so you need to press the button 'c' to place blocks
Minecraft Classic is the only one. Though it is crap and all you can do is place a few blocks and play on crap servers
To place blocks in minecraft, right click. To destroy them, left click.
The two main methods of placing multiple blocks at the same time in vanilla Minecraft are either: Fill Command, type "/fill x y z x2 y2 z2 block" replacing x,y,z with the start locations and x2,y2,z2 with the end location (making a rectangle area). The block should be replaced with any of the Minecraft blocks for example 'stone'. This requires command blocks unless you want to type the command each time and relative coordinates can be used.
right kilk
To create an arrow barrage in Minecraft using command blocks, place a repeating command block set to "Always Active" and use the command /execute at @e[type=arrow] run summon arrow ~ ~1 ~ {Motion:[0.0,0.5,0.0]}. This command will summon arrows above each existing arrow, creating a barrage effect. You can also adjust the Motion values to change the trajectory of the arrows. Make sure to set a chain command block to execute after it, if needed, to enhance the effect or control the barrage's duration.
To give a player jump boost using command blocks in Minecraft, you can use the /effect command. Place a command block and enter the command /effect give @p jump_boost 10 1, where 10 is the duration in seconds and 1 is the level of the effect. Activate the command block with a redstone signal, and the player will receive jump boost for the specified duration. You can also use a repeating command block for continuous effects.
You right click where you want to place the block
You have to right click