Hi, I want to install an outside light and wire into a 3 gang 2 way switch, which would replace the existing 2 gang 2 way switch installed at present. I do not have easy access to a live feed from an existing ceiling rose, so I am intending to fit an extra mcb to the consumer unit and use this solely for the benefit of the feed to outside light. The consumer unit is very closely situated to the required position of the outside light and would only require a short length of cable to make the connection, the same would apply for the switch cable from light fitting to switch. I would just like confirmation that what I am intending is feasible and how I need to wire up the new 3 gang 2 way switch (which is chrome with metal rocker switches). Thanks.