Is it possible to enable keepContentsOnBreak by default for Storage Drawers ? The packing tape allow us to seals drawers but it's annoying to always have to think to use it. It could allow to fix some mistakes (like breaking a full drawer and crashing a server / world) and i believe it to be more convenient.

Not keeping contents was the default behavior in all versions of Omni. A more recent version of the mod made that not the default behavior and required you to opt back in, so we did.

If you want to turn it off for yourself, feel free, but we do intend to keep requiring packing tape (which is a very cheap and multi-use item) or Chest Transporters (another extremely cheap item) to move drawers without losing their contents.