Hello! I need to create a custom button using a formula field that when clicked sets a checkbox field value to true. My use case is that a user clicks the Request Agreement button (formula field)  on a Proposal object the Agreement Requested checkbox field gets set to TRUE (same Proposal object). I think I need to include apex in the Request Agreement button (formula field) for this to work, but do not know what kind or where to start
I'm not a developer, so any guidance would be greatly appreciated!

I need some help with javascript code for custom button to update a field on a record so a workflow rule is executed that then sends an email alert. I have a checkbox field to update but as I am not versed very well in code to update it, need some assistance. Does anyone have some code to accomplish this yoy can share? Thanks.