Is it possible to have zbrush use fast render while transforming and then switch to preview when you stop?
Can I have multiple Zscripts assigned to hotkeys?
When working with a zoomed in document (not the tool) and then zooming out the tool, it will also zoom out the document, anyway to prevent this?
No, but you can use Preferences>Performance>QTransThreshold to reduce the complexity of the model while you’re directly interacting with it. Simply lower the setting to cause it to kick in more often.
What do you mean? Use hotkeys to call specific ZScripts? If so, you could do this through a plugin. Basically it would sit in the Zplugin palette with buttons for each ZScript you want to call, and each button would have a hotkey assigned to it.
I don’t know of a way to accomplish that.