Hi The following example puzzles me. * Exclude certain ID :PROPERTIES: :COLUMNS: :ID: :END: ** Group2 :PROPERTIES: :ID: G1 :Grp1: 1 :Gr: Group-1 :Usuario1: Antonio :Usuario2: Isabel :Usuario3: Paula :Usuario4: Filipe :Start: <2020-07-26 Sun> :End: <2020-11-22 dom> :STATUS: [X] :ST1: [X] :Hoja: H1 :Ej: E1 :END: ** Group2 :PROPERTIES: :ID: G2 :Grp1: 1 :Gr: Group-1 :Usuario1: Juan :Usuario2: Eva :Usuario3: Paula :Usuario4: Albert :Start: <2020-07-26 Sun> :End: <2020-11-22 dom> :STATUS: [X] :ST1: [X] :Hoja: H1 :Ej: E1 :END: ** List of all group members #+TBLNAME: mitglieder2 #+BEGIN: columnview :hlines 2 :skip-empty-rows t :indent nil :ID "G1" :format "%5ITEM(Groups) %5Usuario1(Memember) %5Usuario2(Memember) %5Usuario3(Memember) %5Usuario4(Memember)" | Groups | Memember | Memember | Memember | Memember | |--------+----------+----------+----------+----------| | Group2 | Antonio | Isabel | Paula | Filipe | |--------+----------+----------+----------+----------| | Group2 | Juan | Eva | Paula | Albert | #+END I don't understand why Group 2 is included the ID says "G1" and Group2 has ID "G2" What do I miss? Thanks and regards Uwe Brauer