Partly textured/untextured meshpart

i wanna upload one sword as meshpart that has the handle etc as texture but the blade be untextured so i can change the roblox part color and material to change the blade

  1. i know if i upload the texture and make it that the blade is not textured in blender it still display the blade in the blender base color example black
  2. i know i can make the blade a seperate part and then dont apply a mesh texture to it to get the same result
    problem with 2 is that i plannig on adding lots of sword i already have in blender and for easy of expanding coding i wanna keep it one part if its possible

so question is can i do it or is it not possible ?
thx for reading and helping :slight_smile: