Configure Fortiswitch T1024E stack to handle routing

I have a FortiGate 90G firewall and two FortiSwitch T1024E switches. I want to create a hybrid configuration where the FortiSwitch T1024E switches handle all internal VLAN routing.

I want to avoid all traffic flowing through the FortiGate, as this would create a critical performance bottleneck in my system.

The main questions are:

1) can the pair of FortiSwitch T1024E's handle all internal Layer 3 routing between VLAN's?

2) do I need special licensing features for Layer 3 functionality?

3) if I attach FortiAP access points to my system (at the Layer 2 Edge switching level), how are these managed? Via the FortiiGate firewall? Or via the L3 switching stack?

Please suggest any critical configuration settings to enable inter-VLAN routing by the T1024E's while maintaining as much management integration as possible across Fortinet devices.