+static uint8_t ao_lco_channels[AO_PAD_MAX_BOXES]; /* pad channels available on each box */
+static uint16_t ao_lco_tick_offset[AO_PAD_MAX_BOXES]; /* offset from local to remote tick count */
+static uint8_t ao_lco_selected[AO_PAD_MAX_BOXES]; /* pads selected to fire */
+
+#define AO_LCO_VALID_LAST 1
+#define AO_LCO_VALID_EVER 2
+
+static uint8_t ao_lco_valid[AO_PAD_MAX_BOXES]; /* AO_LCO_VALID bits per box */
+
+static const AO_LED_TYPE continuity_led[AO_LED_CONTINUITY_NUM] = {