Define GUI access level bits for account. Available access levels bits reach from 0 to 30 Value 0 turns GUI access off, bit 0 (value 1) is reserved bit 1 (value 2) defines almighty administrator role. Other values grant GUI access depending on biboAdmGuiAccessTable entries. The default behavior (if there is no entry in biboAdmGuiAccessTable) is application dependent; each value may be interpreted differently on different products. Default value is 0 in order to avoid unintentionally granting access rights.