Undo/redo third party plugins

is this feature in cubase: Undo/redo third party plugins?

I just messed a sound in omnisphere using cubase elements 9 and i cant undo it back can I? pls help.

There’s an A/B button on the plugin toolbar which just helps if you copied A to B before messing up your settings.

You could try via the Mixer History (to be found in the left zone on the mixer). The history doesn’t save with the project, it will get blank if you close/re-open the project.