ok, I understand about Refresh All.
what I called my solution, is what you call Plex Dance 
the way I use PMS is, that I download series and place them within reach of PMS.
so, a possible change of an agent would not apply.
as far as I can see, LMA is correctly activated.
currently I am struggling with a serie, where 11 out of 24 subs are not dowloaded.