Fixed constant number at different time in Simulink

Hi guys, i would like to have a scenario like this: A constant "1" from 0 seconds to 1 seconds. Then a constant "2" from 1 second onwards. Mayb i know if this is possible in Simulink Matlab?

Answer 1

[Fangjun Jiang]

Use the Step block from the Source library, set the initial value to be 1 and final value to be 2.

[Jason Lee]

Thanks FJ Jiang. The answer above given is useable. But what if i want to gradually increases by 4 times? Like from 1 to 2 to 3 and finally to 4? I dont think step can do it right?