The functionality to attach different groups to different receiving phones is not used and could be solved by running different smskrupp instances. By removing it we will be able to receive messages on different sim-cards while still sending to groups using one output phone.
Now each group has a keyword and a phone it belongs to and there is a send prefix (default #). So a sendout would look like "#kw message" this would be delivered to the group with keyword "kw". Likewise for admin commands, "/kw add 12345" would add the number 12345 to the group with keyword "kw". If a number is only in one group it can send messages without the send prefix and keyword.