Custom column in commerce view?
You have two "simple" options and a third "hard" option, which involves writing a custom Views field ... I'm going to skip that one and focus on the simpler options.


Those links all share a common pattern with only the order ID changing based on the row you're looking at. You can use tokens ("replacement patterns") in custom text fields on Views, including the order ID if you've added it to the View's fields list. This means your first option is to add the Order ID field to the View (and hide it by "excluding it from display") and then add a custom text field that adds whatever HTML you want, using the order ID token in the URLs.
The other option would be to add custom CSS to the View that alters the dropbutton styling. In the default HTML for that operations column, it's just using CSS to turn multiple links into that dropbutton format. You can undo that with your own CSS if you'd like, using the classes on the individual links to pick the right icon or whatever from your theme (e.g. "edit", "delete", etc.). 


Either one of these solutions will be much simpler than writing custom Views code, and the second doesn't involve editing the View at all. : )