How to modify routing properties for piping components in solidworks?

I have some problems with solidworks in routing properties,
as example: I can`t match a NPS fitting based on inches to another one with DN (based on millimeter)
Can I modify the design table of a component to allow routing with both DN and NPS fittings?
I attached a flange (NPS inches) and a pipe based on millimeter
so, can I modify both of them or change the design table to route them with other fittings from different dimensioning standards?