Using playeradministration.switchui Console Command

This is an amazing plugin! Thanks so much for providing it.

I am trying to figure out how to bypass the Main Page, which is fortunately almost never used, and go directly into the Online Players page (which seems to me the most logical choice for a Main Page for what it's worth). It sounds like I could use the console command playeradministration.switchui for this purpose but any argument I pass to this throws "[AddUI] Unknown Parent for "PAdm_MainPanel" error. I see in the console log that when I click on the Online Players page I am executing the command "playeradministration.switchui playersonline 0" but when I try to enter this or any rational permutation of this into the console directly I get the aforementioned error.

How, please, is the playeradministration.switchui console command used exactly? Thanks!

Doesn't seem to work to change the ui page but this is from the code
 
/// UI pages to make the switching more humanly readable
        /// </summary>
        private enum UiPage
        {
            Main = 0,
            PlayersOnline,
            PlayersOffline,
            PlayersBanned,
            PlayerPage,
            PlayerPageBanned
        }
        #endregion Types

Thank you for your reply! I was finally able to figure out how to do this, and I'm passing this along to you or anyone else reading this looking for this solution.  I was trying to bind this to a key to open directly to the Online Players page and figured out the way to do this is to bind the following two-command console sequence: 

chat.say "/padmin";playeradministration.switchui playersonline 0

The issue simply was not first initializing the plugin via console to then accept the command to switch pages.