I have a 2-gang box with 2 3-way switches. The left switch has incoming power from another 3-way and out to recessed lights. The right switch has incoming power from nearby outlet, outgoing power to light at bottom of stairs and another to 3-way at top of stairs. My question is normally all the grounds in the box would be connected together but I count 7 when I include the pigtails for the grounds for each switch. No way these can be connected with 1 wire connector, correct?, so is connecting the grounds for each switch OK using 2 separate wire connectors?