I find it very convenient precompilation the transaction when in insert mode , often however the categories are not the same of the last expense ( in a hypermarket buy categories's articles different. Exemple:
clothing, household items , food , books , etc )
Sometimes you can have for the same supplier a expense for
clothes and books, and sometimes for food and games.
You can then have a check list in " categories" to deselect all?
Or maybe there is already a way and I don't know it yet ?
This is not possible yet and you need to de-select categories one by one. However it is on our to-do list for one of the future updates :)