is it passable to use Global Variables in plugin parameters

I think so. If in doubt, just try it? 😉

I tested it and it doesn’t work :( but may be I don’t know something or setup EE incorrect. Of course if it’s not working direct way, I can make internal function for processing tag data like $session->userdata[$tag_data] for this, but more better if it can be done without this 😊..

I have the same problem I supply {logged_in_screen_name} as parameter, but in the plugin I get the string ‘{logged_in_screen_name}’ rather then variable’s value. Can anyone assist me on this?

I did this:

if ($subject_id=="{member_id}"||$subject_id=="{logged_in_member_id}") 
      {
      global $SESS;
      $subject_id = $SESS->userdata['member_id'];  
    }

however I’m sure there’s more proper way.

yes, I decide this issue the same way - add tag global=”on/off” and if it “on” the plugin check tags on global variables range with $SESS.