Fixed Assets

Hi I just newly joined the forum and did so on the recommendation of a friend. I am shortly going to implement navision 4.0 at a client’s place and I am actually encounting some problems. The use requiements are as follow: Require a sub-class of FA for Backup and Maintenance Equipments. Possibility to record registration fees on the Cost of Motor Vehicles. Can anyone please help me out as very new to navision 4.0 Thks Deepa