So I have a bunch of these FFC connectors shown here, and a lot of the middle pins are actually ground pins (highlighted in green). I have a multi-layer board, so I want to route all these grounds to an internal layer. Do I need to run separate tracks from each pin and then use separate vias to go the internal layer? Or I can short them all by running a trace across them and then use a single fat via to go the next layer?
Sorry I'm a complete newbie to PCB design, I don't have much idea about proper routing techniques.