Some contracts require that the employee has to be paid for some of the days unemployed when he/she is laid off. These days are called 'G-days'. The payment rate varies from year to year and from contract to contract, but usually, it is 860 DKK for a whole G-day and 430 DKK for half a G-day.
You can pay the G-days using Salary by creating a bonus in the system and then choosing the 'type' AM-bidragsfri indkomst and 'art' 104 - G-dage. One can create a bonus in Salary by clicking the employee in the menu 'medarbejdere' and, on the right side, choose 'giv bonus'.
More can be read about G-days in this link (ONLY DANISH):