I nedd this for blocks like: “when enter pressed” or “when shift pressed”.

Its for an game that you can run with shift.

In the current state of Scratch (3.0), manipulating project .json files is currently impossible.

In the meantime, there are some people who have managed to get some custom key booleans, so you could borrow those.

If you really want to learn how to edit .json files of projects, I reccomend you download the Scratch 2.0 offline editor (that's the only version where you can edit project .jsons) and follow this tutorial on the Scratch Wiki.

Also, I'm reporting this to be moved to Questions about Scratch.

RadiusGames46 wrote:

In the current state of Scratch (3.0), manipulating project .json files is currently impossible.

In the meantime, there are some people who have managed to get some custom key booleans, so you could borrow those.

If you really want to learn how to edit .json files of projects, I reccomend you download the Scratch 2.0 offline editor (that's the only version where you can edit project .jsons) and follow this tutorial on the Scratch Wiki.

Also, I'm reporting this to be moved to Questions about Scratch.

Ok, thanks!

Moving over to Questions About Scratch for you

RadiusGames46 wrote:

In the current state of Scratch (3.0), manipulating project .json files is currently impossible.

It is possible, I don't know where you got that from.

The Shift key can't be detected in Scratch (even with JSON modification; the project player literally ignores that key). The Enter key can, and can even be done in the normal editor using something like a join block.