No. Morphs are created by Adapters, Spec interpreter instantiates glues everything together.Regardless, there's no parsing involved��� what is there to parse? There are no literal arrays anywhere.The SpecLayout (that we called array last week), is not an array, it's a composition of real objectsdefaultSpec^ SpecLayout composednewRow: [ :row | row newColumn: [ :col | col add: #topToolbar height: self toolbarHeight ] ]height: self toolbarHeight;newRow: [ :row |��rownewColumn: [ :col | col add: #navigatorModel ] origin: 0 @ 0 corner: 0.2 @ 1;addSplitter;newColumn: [ :col | col add: #tabManager ] origin: 0.2 @ 0 corner: 0.85 @ 1;addSplitter;newColumn: [ :col | col add: #formModel ] origin: 0.85 @ 0 corner: 1 @ 1 ]top: self toolbarHeight;yourself