Hi Rolf,
You can do that with an action trigger (click action trigger icon in the icon menu). You can even add an image to the button to customize it. For a step-by-step description of how to insert an action trigger you can check out the "How To" section: world.mendix.com/display/Howto/Connect+actions+to+events+-+action+trigger
You will need a free field in your dataview where you can place button.
Good luck! Cheers, Chris
Sure, you can put an action trigger in a table cell of a dataview and link a microflow to it by means of the connector down right.