[SAJ]

I have a 4 post English Bradbury. Instead of rolling transverse jacks, it has two extra longitudinal beams that adjust sideways on small rollers supported on two lateral beams. These beams rise and fall with the car ramps, but can be locked in any position under the car to support either the axles or chassis when the ramps are lowered away. This leaves the wheels free for brake work or spring and axle removal if stands are placed on the beams to reach up and support the chassis.
For rear axle and driveshaft removal using the rear wheels to roll the assemblage out from under the car, the beams can be rolled outside the car before driving it onto the ramps, in which case small hydraulic jacks are used from ramps to frame.
I have not seen this scheme on any other brand, but for me it works very well. Brake work at chest height is so much easier, and greasing, oil changes, main bearing checking etc at full height easy too.
SAJ in NZ