Please let us lock items.

[VenomSet]

I don't know why this hasn't been suggested yet.
So many mistakes happen when you delete things.
Just an example: You delete your Heraldic Vest if you tap at "Sell all RARE items"
If you could lock items it would delete all rare items but not the Heraldic Vest if you locked it before.

Btw, I think this would also help support because there won't be hundreds of emails which contain things like "Pls recover XY items i deleted them by mistake"