To enter a company asset, ie plant and equipment, vehicle, etc. into the accounts, it is entered as an expense order. When choosing the account code, if the relevant Asset account is not in the dropdown list, go to the general ledger and choose from one of the Fixed Assets, or add a new account:
Double click on the account and ensure that it is ticked as an Expense PO Account with a Default Tax Code C (Capital Acquisition).
Proceed to entering it as an Expense order using Tax Code C.
Further information
Move Stock from Depleting to Asset