What do you mean with support for all cameras? Is there a possibility to have multiple cameras in octane? Did I miss it so far?
Yes, in the Mesh Preview Configuration node, right clic and Add > cameras > thinlens.
It will add a camera named « Thin Lens Camera » that you can connect to the Mesh Preview RenderTarget node to change the active camera instead of the « Mesh Preview Camera » by default.
A new version of the script is in progress, it will import the resolution parameter.