You will need to ALSO add all of your MT4-groups;
Go to Admin → MT4 GroupsAdd each group or import from CSV.
Once you are done adding the groups, you must THEN add the groups to the relevant mt4-server;
Edit the mt4-server and expand the "Groups" section - there,
you will see ALL mt4-groups in the LEFT-pane.
Select the ones that are relevant to the server (demo OR live) and click SELECT - it will MOVE the items from the LEFT to RIGHT pane.