Is there a way to add a button on transaction lines?

I don’t think you can

What i have done in the past to 'hack' this, is create a checkbox on the line then monitor the field change event for that checkbox

@Nathan L wanted to have a hyperlink or dynamic button edit mode to have the users to redirect them to a page. Looks like field change is the only option i see. Pls lmk if you see any other options. Thanks

Sublist.addButton is the closest suitescript option