Taz Pro switch Extruders on filament runout

I was wondering if there is a feature in the works where the Taz Pro dual extruder would switch from extruder 1 to extruder 2 when it detects a filament runout on extruder 1. This would be great for large prints I do on the Taz printers.

It would be even better if I can change filament on extruder 1 part way through the print so that it would go back to extruder 1 after extruder 2 runs out.

Essentially endless filament for printing sake.