Create a optionext to Task

Hello, i want to create a custom option as i show in the image: when someone click that option i want to show an alert
Does anyone can help me to do that? im new in this tool

Hi @Cristhian_Cobenas_Hu, welcome!

I think this example will help you.

I saw that but i dont know where i can start, cant find a step by step tutorial, when i read that link you gave me i dont undertsand what i should do.

What have you already tried? Have you checked out the example? What are you struggling with?