Indeed just to add to his correct post regarding G/S capture from above in a 737NG I will add the A330 proceedure:---
INTERCEPTION FROM ABOVE
The following procedure should only be applied when established on the localiser, with either LOC* or LOC displayed in green on the FMA. The best rate of descent is achieved with the landing gear extended, FLAPS 2 selected and flying at VFE2 − 5 kt. Speedbrakes may also be used, noting the considerations detailed in Deceleration and Configuration Changes earlier in this chapter. Apply the following procedure without delay:
• Confirm LOC capture and G/S armed.
• Select the FCU altitude above aircraft altitude to avoid unwanted ALT*.
• Select V/S − 1,500 ft/min initially. V/S in excess of 2,000 ft/min will result in the speed increasing towards VFE.
V/S rather than OP DES must be used to ensure that the A/THR is in SPEED mode rather than IDLE mode. Carefully monitor the rate of descent to avoid exceeding VFE or triggering a GPWS warning. When approaching the G/S, G/S* engages. Monitor the capture against raw data. Use normal procedures for the remainder of the approach.
If at any stage it becomes apparent that the stabilised approach criteria will not be met, perform a go-around.