I’ve been following a training manual for Rhino for windows, even though I have a mac, Ive set out the program as close to how its laid out on windows as I can and have so far been able to work out where everything is. That is besides the ‘split viewport horizontally’ command. The manual says, in windows, the command is in view> viewport layout > split horizontal. However, its definitely not here on the mac. Anyone know where else it could be?
To deliver a bit more bad news, when you drag the vertical divider between the viewports, it resizes the viewports on both the top half and bottom half of the Rhino modeling areas. (You will notice this is not the same as the Windows behavior and also not the same as dragging the horizontal dividers in Rhino 5 for Mac). This is a known issue and it limits the sizes and shapes of the viewports to some degree. We don’t have a fix for this coming in Rhino 5 for Mac; we are investigating a fix in Rhino 6 for Mac.
NewFloatingViewport might be a good work-around in your case.
I hope that helps,
Was going crazy trying to find the command haha