we are currently still using the old VNC (VC4) visualisation in our project. In order to switch to MappView, this would have to be rebuilt step by step due to the complexity and size of the old VNC visualisation.
Is it possible to run both visualisations in parallel?
Can MappView be switched on and off during runtime to save resources?
Yes, you can run it parallel. You can even integrate VC4 to mappView using VNCWidget I do not think that you can switch off mappView server from application.