DSP Robotics Support

Hello. I've been trying to do some audio VST plugins with Flowstone and everything works pretty fine for me, but I have one problem. When I import those plugins to Nuendo they work, I save project with used plugins. Then, when I again open that project in Nuendo, all VST plugins reset their values to which they were set when they were exported. For example:

1. Created Pre-Amp with Volume Knob
2. Import to Nuendo, Create project, use plugin
3. Set value of Volume Knob to maximum
4. Save project, Close project
5. Open project again, value of Volume Knob is again on 0

When you download some other VST plugins in Nuendo, they can "store" information about values of knobs, switches, whatever, so I must do something wrong. Can anybody please give me advice how to fix this?

did you implement a presetmanagement?

I just dragged and dropped it into the project, exported VST and it seems to work, also I re-scaled it to minimum to make it invisible. Are there any other ways how to make it not visible? Thanks for help by the way, I appreciate it.