Link slider to a button

[Projet_connecte]

Hello, I am a beginner and I use App Inventor recently, I am facing a problem that will probably be easy to solve for the most experienced, I am currently developing a mobile application that requires a slider and buttons.

I explain: my goal is to make sure that when I press the button called "button 1" the slider level is at 25% of its maximum value (100), and the same when I press the button "50", "75" and "100".

Thank you in advance to those who will help me.

[SteveJG]

Perhaps something similar to

where 0.5 represents 50%

assuming you have already set the slider width and set a max value.

[Projet_connecte]

thanks u so much, appreciate ur help.