This is not that simple to respond to.... And depending on where you work it might be impossible to change...
First check the NX logfile : Help - NX logfile, then in the listing window search for "UGII_ROUTE_ELEC_APP_VIEW"
The address will tell the name and the location of a file whose name should be similar to "ugroute_elec_mm.xml" ( name might be changed by the person who set up the system.)
IF you have access to the file ( might be locked by administrator) open it in notepad and search for "bend", you will find at least 15 hits.
Somewhere among these is the value that you are looking for.
Regards,
Tomas