diff --git a/invite-multiple-contacts-to-private-group.md b/invite-multiple-contacts-to-private-group.md
index b98cf12..55a9c20 100644
--- a/invite-multiple-contacts-to-private-group.md
+++ b/invite-multiple-contacts-to-private-group.md
@@ -10,13 +10,33 @@ Both Invitations and replies can be sent via:
 - own mailbox (which can be done before or after exporting to removable media)
 - exporting to and importing from removable media (which can be done before or after upload to Mailbox)
 
-| invite sent via | Rec1 | Rec2 | Rec3 | Rec4 | 
+- Sender = online
+- Rec1 = online
+- Rec2 = offline
+- Rec3 = offline
+- Rec4 = offline
+
+Has Mailbox?
+- Sender = yes
+- Rec1 = yes
+- Rec2 = no
+- Rec3 = yes
+- Rec4 = no
+
+
+
+
+| Invite sent via | Rec1 | Rec2 | Rec3 | Rec4 | 
 | ------ | ------ | ------ | ------ | ------ |
-| cell | cell | cell | cell | cell |
+| ------ | internet | BT | MB | Export|
 
 | Reply rec'd via | Rec1 | Rec2 | Rec3 | Rec4 | 
 | ------ | ------ | ------ | ------ | ------ |
-| cell | cell | cell | cell | cell |
+| ------ | MB| Exportl | BT | Internet|
+
+Sender sends messages via different methods, and recipients send replies via method that is different from the one via which they received the invitations. 
+
+To check if this makes sense - ie to be able to receive messages in this way, does the sender need to be online or offline and at which point do they need to switch from one to the other?