Is there some common / best way for coding builders? Two ways that I see are: a) using a block - I've seen this in menus and some other, however in my case I need to add an extra parameter as label "variant with two params" aForm addDropList: 'Type' with: [ :dropList | dropList items: #(input #output); " ... ". ]. "variant with one method param and value holder" aForm addDropList: [ :labelHolder :dropList | labelHolder value: 'Type'. dropList items: #(input #output); " ... ". ]. b) using return value - no blocks, no extra code (aForm addDropList: 'Type') items: #(input #output); " ... ". I would use the second variant as it looks much cleaner, however considering how widespread is the use of the first variant I think I must be missing something. Thanks, Peter