You can execute commands in the in-game chat.

!help

Add the tag "worldedit" to yours.

/tag @s add worldedit

!cyl stone 30 10

We were able to create a vertical cylinder with a radius of 30 blocks and a height of 10 blocks.

!cyl -h stone 10 (-h can be anywhere after cyl) or !hcyl stone 10

We were able to create a hollow vertical cylinder with a radius of 10 blocks and a height of 1 block.

Please have a items.

I will try to do it with a wooden sword.

!brush sphere stained_glass[color=light_blue],concrete[color=light_blue] 6

Right-click (use) the wooden sword.

A sphere with stained_glass[color=light_blue](light blue stained glass) and concrete[color=light_blue](light blue concrete) randomly placed in front of you has been generated.

Brushes are set for each items, so you can set as many as you like.

Set the position with the wand or pos1, pos2 commands.

Left-click (tap) with "Wand" in hand

!pos2

!overlay red_flower[flower_type=poppy],red_flower[flower_type=oxeye],air,air,air,air,air,air,air,air

In this way, you can set the probability that nothing will be place.

Also, since it is an overlay, the specified block will be placed on top of the top block in the range.

!undo

I was able to undo what I had previously created

!redo

I was able to redo the undo.

Commands

• help
• cyl [-h] <pattern> <radii> [height]
• hcyl <pattern> <radii> [height]
• sphere [-h] <pattern> <radii>
• hsphere <pattern> <radii>
• br <cyl|hcyl|sphere|hsphere|unbind>
• brush <cyl|hcyl|sphere|hsphere|unbind>
• wand
• pos1
• pos2
• desel
• deselect
• set <pattern>
• overlay <pattern>
• replace <from> [to]
• undo [times] [player]
• redo [times] [player]
• clearhistory

WorldEdit Addon Q&A

This Addon uses WorldEdit(Java Edition) source code, is it OK?

This Addon itself is entirely my own work.

I manually converted some of the WorldEdit(Java Edition) source code from Java to JavaScript and used it, but the WorldEdit(Java Edition) website says, "You are free to include WorldEdit, without having to asking for explicit permission. " It states.

https://www.curseforge.com/minecraft/mc-mods/worldedit

So it is not a problem.

How to find out the properties and values of a pattern?

Let's examine a stone to try it out.

!cyl stone[?=?] 0 0

We found that the stone properties are stone_type.

Change to the correct property.

!cyl stone[stone_type=?] 0 0

We found that the stone values are stone,granite,granite_smooth,diorite,diorite_smooth,andesite,andesite_smooth.

When setting multiple properties, use ";" instead of "," to separate them.

• × block[property1=value1,property2=value2]
• ○ block[property1=value1;property2=value2]

Can I even save the items of the chest in the history?

Unfortunately, this is not possible at this stage.