Start option for eM Client: providing master password

I use a master password in emClient. I also use a password manager and like to run emClient from this manager by executing a command line option.
https://support.emclient.com/index.php?/Knowledgebase/Article/View/166/9/can-i-apply-startup-paramet…

This is that I found so far. Is there no option to enter the master password via the command line?

The startup password is a very low tech security setting. It does not in any way protect or encrypt the data, so someone could just take the database directory and open it on another computer. They would not need the password.

But its purpose is to prevent the application opening the database automatically on your computer, so using a command line option to bypass that prompted input kinda defeats its purpose.