One bank transaction with multible expenses

[María Óskarsdóttir]

If I go to a shop e.g. Walmart that sells different idem and I buy food for 300, office supplies for 500, cleaning products for 200 and pay with one transaction from my bank 1000.

How would I do that in bkper?

Also in Iceland we have 2 different taxes 11% and 24% and food are in 11% and office supplies and cleaning products are in 24%