Ctrl-click build pieces to make a construction to-do list.
Hold Ctrl and click a piece in the build menu to add one to your to-do list. The list appears beside the build menu and offers buttons to adjust quantities by 1 or 10. Click a list entry to select that piece for building. Placing a listed piece reduces its remaining quantity automatically. The list is saved for your character.
When opening Containers, the Build Todo Materials will show up next to the inventory.