Cold Temperature Conversion & Vectors to Final IFD

I would like to know if IFD is capable to do a Cold Temperature Conversion for an approach like Garmin GTN does?  

Second, enabling Vectors to Final once your have load an approach or even you've already activated from IAF and ATC decided to vector you to final instead. I do not see any VTF option in the FMS at this point.  In this case I've to reload the approach again with VTF. Anyone else knows a better way? Thank you 

Rather than loading / activating the VTF version of the approach, simply perform an Activate Leg to the whatever waypoint along the approach makes sense based on your ATC vectors. Loading / activating the VTF version of the approach is essentially requesting an Activate Leg to the FAF.