• In draw.io go to Extras -> Configuration and enter the follwing value

{
  "gridSteps": 8
}

• Then go to View -> Units -> Meters
• Then click on the grid, so that everything is de-selected. On the right hjand side Diagram -> View -> Grid: Enter the number 0.01 m

Got to Filer -> Open Library from -> Github (or URL)

• Load Logistic library
• Pull the belt into the scene and select it
• On the right hand side click "Set as Default Style"
• Every arrow pulled from an object uses this style now