Here's where you can find buttons to undo and redo different things:
Right click anywhere in the code and select undo and redo to undo and redo changes to your code. Or if you like keyboard shortcuts, use ctrl+z for undo and ctrl+shift+z for redo.
[img]http://u.cubeupload.com/Hedgehog_Blue/undoCode.png[/img]

Costumes and sounds have these arrow-like buttons that you click to undo and redo changes to a certain costume or sound
[img]http://u.cubeupload.com/Hedgehog_Blue/undoCostume.png[/img]
[img]http://u.cubeupload.com/Hedgehog_Blue/undoSound.png[/img]

If you delete entire costumes, sounds, or sprites, you can find a restore option (which undoes the deletion) in the edit menu
[img]http://u.cubeupload.com/Hedgehog_Blue/undoDeletion.png[/img]

They rejected this idea because there would be much more difficulty making sure people use cloud lists for safe uses that the scratch team can moderate.

If you want cloud lists, you can convert your lists into a string of numbers and put it into a cloud variable, then convert it back (just watch out, cloud variables can only store 256 digits of data, which you can get to quickly if you're converting a list).

You can learn to make an encoder or get help, using [url=https://scratch.mit.edu/search/projects?q=cloud%20list%20tutorial]tutorials on scratch[/url] or [url=https://en.scratch-wiki.info/wiki/Encoding_and_Decoding_Cloud_Data]the scratch wiki[/url] or [url=https://scratch.mit.edu/search/projects?q=cloud+list]search for projects that have already coded it for you[/url].

Sorry, this suggestion was rejected by the scratch team, because having a different name could be confusing, it would need to work with links to your profile and difficult to make it work with the moderation system. Sometimes the scratch team will accept specific requests, when somebody has a problem with their username, like saying their real name, and want to fix the issue, but just not liking it isn't going to work.

If you want a new name for your account, you'll need to create a new account.

This isn't possible, except in very specific situations. Sometimes the scratch team will accept specific requests, when somebody has a problem with their username, like saying their real name, and want to fix the issue, but just not liking it isn't going to work.

If you want a new name for your account, you'll need to create a new account.

To detect the project being stopped, use the when timer > [ ... []] block.
[scratchblocks]
when green flag clicked
forever
set [last time project was running v] to (timer) //create a variable that stores the last time the project was running
end
when [timer v] > ((last time the project was running) + (0.1)) //when the project is stopped, it sets off this script
... //this is whatever you want to do when the project is stopped
when [timer v] > ((last time the project was running) + (0.1)) //and this script just keeps checking if the project is stopped again.
forever
set [last time project was running v] to (timer)
end
[/scratchblocks]

Only one point of a costume can actually be at certain coordinates. There is a plus-looking thing in the middle of the costume editor that marks that spot.
[img]http://u.cubeupload.com/Hedgehog_Blue/452ScreenShot20200510at.png[/img]

So if you draw a costume where the plus is far away from the art, then that empty area will be at the correct coordinates and your actual art won't be.
[img]http://u.cubeupload.com/Hedgehog_Blue/ScreenShot20200510at.png[/img]
Here's how it looks on the stage:
[img]http://u.cubeupload.com/Hedgehog_Blue/669ScreenShot20200510at.png[/img]

So next time you draw a costume, draw it around the center so when it goes to a position the sprite's coordinates are actually nearby the art, or select all of your sprite and move it over.
[img]http://u.cubeupload.com/Hedgehog_Blue/7ceScreenShot20200510at.png[/img]
Now your costume is set so that the middle of the art will be at the correct coordinates, which you probably want.