Please note Duende hardware support ended 2010.
The short answer is no you cannot.
But you can use different Duende Native and Duende DSP plug-ins alongside each other on a single system.
When you run the Duende Native installer you are prompted to select which Native plug-ins you wish to install.
If you choose to install the Native version of a Duende DSP plug-in that is already installed on your system the Native plug-in will overwrite the DSP version.