I don�t get it sorry.

Padding by ten pixels to the left:

| leftMargin aParserButton |
leftMargin := Morph new
width: 10;
hResizing: #shrinkWrap;
vResizing: #spaceFill.
aParserButton := PluggableButtonMorph on: self getState: nil action: #parse.
aParserButton
hResizing: #spaceFill;
vResizing: #shrinkWrap;
label: 'Parse'.
AlignmentMorph newRow
vResizing: #shrinkWrap;
hResizing: #spaceFill;
layoutInset: 0;
addMorph: aParserButton;
addMorph: leftMargin;
openInWorld

Regarding this example, AlignmentMorph is a submorph of Morph with a layout policy.

you can do the same with bloc. No time now but i will implement this example in my doc.

Mind you, I consider Bloc a very good choice, but I fear that we're not able to stress it enough with hard, very advanced GUIs to ensure we're not loosing power compared to Morphic.

yes, there is a risk, this is why we should progress carefully and not too fast

thanks

Alain