The Property tab becomes available once the Fixed Assets option is selected on the Main tab. The option Fixed Assets option is available if the Fixed Asset Management option is selected on the Administration > Settings > General Settings form.
Using this tab, you can enter the beginning balances of bank and cash accounts. 
The Opening Balances Entering (create) document. The Property tab
To add a row, use the Add button.
The Fixed Asset column is intended for listing of the fixed assets which have balances on the date of the start of operations in the application. You can select an assets from the Fixed Assets master data, or you can create a new record. For details, refer to Adding a Fixed Asset.
In the Current Status / Department column, specify the current status of the fixed asset and the department responsible for this fixed asset.
In the Depreciation method / UOM column, select the method of depreciation assigned to this asset. For the Units of Production method, select the UOM used for measurements.
In the Useful Life to Calculate Depreciation / Volume of Production / Depreciation column you can enter the useful life of the fixed asset during which it will be depreciated, the limit of units of usage if the depreciation method is Units of Production .
Use the Initial Cost/Current Depreciation column to enter the initial cost and accumulated depreciation.
Select the Depreciate column to indicate that the fixed asset must be depreciated; clear the check box to indicate that depreciation for this asset will not be performed.
In the Expense GL account/ Expense item column, you can select the account to record the depreciation expenses and an expense item associated with usage of this fixed asset.
In the Business Activity column, specify the business activity for which the asset is being used. The depreciation expenses will be associated with the selected business activity.
The GL Accounts column contains the link to the GL Accounts: Fixed Asset dialog box using which you can view the GL accounts involved in the transaction. 
The GL Accounts: Employee Name dialog box
In the Transaction Content column, provide a description of this beginning balance.