Hi, Here is a simple example: | browser | browser := GLMTabulator new. browser row: [:r | r column: #one; column: #two]; row: #diff. browser transmit to: #one; andShow: [ :a | a list display: #first ]. browser transmit to: #two; andShow: [ :a | a list display: #second ]. browser transmit to: #diff; from: #one; from: #two; andShow: [ :a | a diff display: [ :one :two | {one asString . two asString}] ]. browser openOn: #(#(abc def ghi) #(abc xyz)) I also added it now to GLMBasicExamples. Let us know if you need anything else. Cheers, Doru On 23 Apr 2012, at 20:54, Ezequiel wrote: -- www.tudorgirba.com "One cannot do more than one can do."