Where to connect navigation lights/LED's?

I’d like to connect LED’s that also work as naviation lights , Where are the intended outputs on pixhawk ?
BTW: it’s a hexa Arducopter - so some of the outputs are taken, but at least battery warning and GPS status could be output to some lights.

I have asked the same question on diydrones forum and Randy answered me it was not yet implemented in Pixhawk.
The plan is apparently to wait for a 3DR to produce an external led device that would plug directly in I2C port, If I understood right. When is still not known but there exist a ticket about this in the issue list.