i cant change variables on scratch even if i click on them

To change a variable, you just take the Scratch block that looks like [set to ( )], you put whatever value you want into the blank, and you click it. Or, you could try putting it in a script if you need the script to change them.

Any other questions?

Also, hello windows_old and welcome to Scratch! I hope that you'll have a smooth road to making whatever you love while here!

With respects,

ErnieParke

And if you change the variable to “slider” and “show” then you can change the variable right from the player screen!

no i mean when i have 2 variables and it shows the variables of one of them but i want to switch to the other variable

I made a script here in my scripts sandbox for you. Just scroll down until you see your username. It shows how to set one variable to another.