Split Screen Hardware Scrolling

[RJRS]

Could the hardware scrolling deal with a VERTICAL split screen such as Lemmings OR did you have to implement with Blitter/Software?

I have noted that Lemmings (in dual player) has a large dividing border in the middle, is this to hide change over of virtual screen maybe by the COPPER.

[polyp2000]

Not sure how lemmings does it , but the effect could be achieved by using dual playfield mode and a single screen-height sprite down the middle.