Hi,
I want to use copy paste from my PC into proxmox's VM via console noVNC : or other lib if exists.
I search for some hours but nothing works
Thanks a lot
That is the state of the art. VNC is only the graphical output and all other input devices are emulates USB, therefore this is not possible.
If you want to have such a feature, please look at the SPICE protocol and it's desktop companion app which works like you want or use a desktop virtualization product, which virtualizes differently.