Firstly, see inside then you will see some blocks if you want them then pick blocks into your back pack and then you can use them in your projects.
One day i was making a project in scratch and then i think why does scratch not give us keys like key enter pressed? or any symbol key then i go to youtube and then i understood how to do that and this is why i share this project.you can check that to by just clicking that block and that key at a time.
