Kicad refuses to let me hook up ground pad on SPH0645LM4H-B Footprint

[maui]

You may have a look at this thread

[SOLVED] "Broken Ring" pattern in paste layer for footprint generation

I need to create a footprint for a bottom-port MEMS microphone. The spec sheet is quite specific in its footprint which can be seen in the image linked below (hopefully). How can I generate the paste ring with the 4 breaks? The closest I’ve managed is to create a through-hole pad, then used the graphic Arc tool to create arcs in the Paste layer. It’s close, but the ends of the segments are rounded not square. Using 4.0.7 currently. Thanks. https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9…