Updating data from a repeating group

I’m trying to have a drop down in a repeating group, and when its changed it changes the current cell users data to predefined options. Optimally, i’m trying to have it so no button has to be pressed after using the drop down to save the data. How can I make the drop down change users data in the repeating group?

If you right click on the dropdown and select “Start/edit workflows”, you can set workflows that run when the input’s value is changed. This would work on every cell of the repeating group.

Thanks for the reply, however: When the drop down is in the repeating group threes no option to start/edit a workflow from double-clicking the element. However, I made a new event (Elements > when an input is changed) and set the element to the drop-down.