Updating multiple materials with one message box now works
Updating multiple materials with one message box now works

CURA-1909

totalretribution/Cura,totalretribution/Cura,fieldOfView/Cura,senttech/Cura,Curahelper/Cura,fieldOfView/Cura,hmflash/Cura,hmflash/Cura,ynotstartups/Wanhao,senttech/Cura,ynotstartups/Wanhao,Curahelper/Cura