Possible to develop a VST3 that gets inserted into like the Master Bus for offline processing

Hi Experts,

I am a total beginner when it comes to vst3. Can you tell me if the following scenario is possible with a vst plugin:

Add the plugin to the master bus.

On click of a process button, export offline (fast) the complete mixdown to a file or to memory, process outside of the DAW and bring the resulting processed audio back into a new track. For performance I do not want to wait to play back the mix but rather export offline.

Thanks alot,

Mozzak