All financial transactions can be found in the Financial Transactions panel. The Sum field is checked for parent financial transactions since it represents total of all subordinate ones. The latter are entered manually.
Example:
Let us take a look at financial transaction 2 which consists of transactions 21, 22 and 29. That is why the Sum field is checked for financial transaction 2. The bottom sections, that is, Assets on the left and Liabilities on the right side are empty since data are obtained after totaling subordinate transactions (21, 22 and 29).

Below you can see accounts that are entered for financial transaction 21:

Under section Assets enter accounts for financial transaction 21 (Currency) to be included in assets report (Form1, Form3, Form5, Form_1). Here we applied accounts 100% and 101% to be included in CIS of the subject pertaining to the post.
On the other hand, under section Liabilities enter those accounts for financial transaction 21 (Currency) to be included in liabilities report (Form2, Form4, Form6, Form_2).
For detailed treatment see Setting-up Financial Transactions.
Related topics:
For a general description of functions see: