Editing SMS & Call Filter Groups

How do I edit withing a group? Adding is simple, but how do I remove an entry from this list?

Also, how do I add another group if I want to have different blocking times for each group?

You can add a new group by green button “Create a new group” in main dashboard (SMS and Call filter). Editing is simple too, just tap on existing group and then on group members. Long tap will provide more options (Edit, Delete).