When I copy and paste an object from another project, the material is not duplicated as many times as I paste it.
In CINEMA4D without Chaos Corona, no matter how many times you paste an object from another project, the material is never duplicated the number of times you paste it.
Confirmed in CINEMA 4D 2025
Sorry, the title suggests you want to copy and paste WITHOUT duplicating the mateiral, but the description sounds like you want to copy and paste WITH duplicating the material (because right now the material is not duplicated on a copy and paste). Please can you clarify :) Thanks!