How to play the mux step sequencer?

[Elode]

Hello, I'm new to Mulab and Mux.

It's a very basic question, but I can't play the step sequencer. Nothing happens!
Is there a play button somewhere? I can not find it…

Here is a screenshot of the situation :



Sorry for that silly question :/
My Mulab version is 4.3.3 for Windows

[focusrite]

Hello, I'm new to Mulab and Mux.

It's a very basic question, but I can't play the step sequencer. Nothing happens!
Is there a play button somewhere? I can not find it…

Here is a screenshot of the situation :



Sorry for that silly question :/
My Mulab version is 4.3.3 for Windows

It needs midi note input

[Elode]

Okay, I didn't understand that you needed a note entry to play it.
Thank you so much!