Depreciation Expense Key in Assignment not filled by the Depreciation Expense Key defined in the Cat

Hi every Body,

In the Asset Category, the depreciation key is defined as follow:

B1.630222.0000.000.9410.000.00000000.00000

Where B1 is the balancing segment, 63022 is the natural account and  9410 is the management segment

I expected that these 3 segments will be automatically filled in the Assignment field when creating assets manually, but only the natural account is defaulted. The balancing segment is empty and all other segment are defalted by the Non Significant value "000..."

Is ther any way to default the balancing segment and the management segment too?

Thanks a lot for your help.