accounts receivables, allocation payments

Hello,
like the program very much, but have a question

When i will book  receiables against customer invoices, I first need to go to

- transactions customers - search for the needed customer and will see all the outstanding incoices

- after this I go to  allocate received amount to invoices. and see  directly the customer, as searched at transaction customers and then it is possible to allocate the amount.

However by accounts payables, when I will allocate  an invoice of one of my supplers, I can directly go to the option payments  creditors.

Do I something wrong or is there  perhaps a bug in the program?

Like to hear from you.

kind regards Tilly