I dont’t know if it’s possible.
However, you may try to reorganize your plugin database to have fewer entries in the menu.
Create a folder for each plugin with all configuration files needed by the plugin.
Put all folders in a root folder like “VSTplugin” or something like this.
Example of plugin database structure:
its not easy…cuz list of this plugins from WAVES. 1 DLL file wave vst connecting all of this from wave installed folders…- + 300 effects and nothing can do….in others DAW there is special scroller but here…..