Plugins installed for Serna are located in the sernaInstallationPath\plugins directory or in an additional plugins directory.
You can see the list of all the available plugins and disable/enable them for all document types:
To call up the Preferences Dialog, choose .
Figure 1. Plugins tab.
In the Installed plugins column, you can see the names of available plugins. In the SPD Path column, you can see the paths to their *.spd files (Serna plugin description files). Checked plugins are enabled.