Hello, How might one achieve a fixed width column containing fixed width widgets within a resizable row using Spec Layouts? For example: <--- Resizable Space --->| Fixed Width |<---Resizable Space ---> Where the Fixed Width space might have something like a left justified input field and a right justified button or something. The best I can achieve is everything resizable, which Spec excels at! I have tried adding three columns to the row with the center column a fixed width (newColumn:width:), but I can't seem to get it centered. I have even tried adding dummy widgets as in the code below, which creates a resizable column taking up the first half of the space, followed by a fixed width (100) input field, followed by another resizable space (sharing the right half of the column with the fixed width column): LayoutPractice>>defaultSpec ^ SpecColumnLayout composed newRow: [:row | row newColumn: [ :col | col add: #spacer1 height: 30 ]; newColumn: [ :col | col add: #inputField height: 30] width: 100; newColumn: [ :col | col add: #spacer2 height: 30 ]; yourself ] height: 50; newRow: [:row | row add: #list ]; yourself If this is not possible, could I allow the window to resize vertically but not horizontally (I have a ListPresenter below problematic row which would be nice to resize vertically)? Thank you, Rob