This is my remix of already nice model by Lee. Main change is adding button to the dongle.
You need small SMD button 4*4*1.5mm, as shown on photos.
Just cut two legs from the right side, and solder two left legs direct to RST and GND pins on the board. Dont use to much solder, otherwise it will prevent lid to close, amount shown on photo is completely enough. You will maybe need to slightly bend legs to best fit distance between pins (check pictures to see how in should look).
The author remixed this model.