Hi,
In Polycarbonate Preheat Profile set bed temperature of 105 Degrees and nozzle temperature of 270 Degrees.
@anilrobo90 I think that @michalxfanta said at some point that custom preheat profiles will come to a future firmware version.
Actually,
you can change the setting for any type of filament

just go to the filament settings option and change the temperature. In the picture, it is 215 for pla, but I could make it 220 or 210. You can also make it different for the first few layers than the rest of the print.
Yes, custom preheats profiles will come.
Most helpful comment
@anilrobo90 I think that @michalxfanta said at some point that custom preheat profiles will come to a future firmware version.