Hi Stef, Thanks for looking into this. I think these kind of discussions are important. The goal of this notation was to keep the language as simple as possible, but in this case it would indeed be better to have a different selector for the composite. I do not like rowNamed: / columnNamed: because they are just too long. I will introduce a compositeRow: and compositeColumn: for the composite ones, and keep row: / column: for the single ones. As a transitory phase, we will still be able to send a block to row:/column: for a while. Cheers, Doru On 30 Oct 2010, at 18:06, stephane ducasse wrote: -- www.tudorgirba.com "Value is always contextual."