Install module
Odoo's own modules are generally stored in the server\odoo\addons directory. In addition, downloaded third-party or self-developed modules are generally placed in the server\addons directory.
Just set all accessible addon root directories in the server\odoo.conf file, such as addons_path = C:\Odoo14\server\odoo\addons,C:\Odoo14\server\addons\PLM
Note: After adding a new addon file, you generally need to restart the odoo service before it can be recognized by odoo. (Restarting the odoo service can be managed through the service management of Windows Task Manager)
In the odoo interface, run apps
Just select the module you want to install.