Allow layout sub-columns within columns

Hay Figma, Could you create a guide feature which allows sub-columns within the layout column? Generally, a column defines the outside edge of a block. But then the internal content elements within this block are margined within the block (e.g. heading, body text, button etc.). These internal elements are manually/mathematically positioned each time when designing/building the page. If there was the ability to apply a secondary sub-column within the standard column - these internal elements could ‘snap’ into position, reducing build time. Just a thought.