OK, let me explain a bit. If you have a portrait mode layout and then make a landscape variant, some things you can change and others you can not.
You can change the position and size of panels. You can not change the font size. If you do, then the font size is changed for both portrait and landscape. SO that's what I mean. It'd be nice if you could change everything in landscape without effecting portrait mode. Especially text would be amazing.
See, the text on the panels were designed for portrait, but when you change to landscape, they don't fit. You have to modify the position and scale. But then some of the text gets cut off.
This would also allow panels to be different on layout and portrait. Let's say that I use 3 invisible panels in portrait mode to stretch out the objects. 1 gets docked on top, 1 on the bottom and 1 in the middle. Now all aspect ratios look good. But if I go to landscape mode, this doesn't work. I want to center them horizontally. They are too tall for landscape. O if you could change the parent of other things for landscape, then one could modify the landscape layout to make it look good on all aspect ratios.
If you don't get what I mean, download low-joe from play store. Look at portrait and you will see good layout. Now look at landscape. See the right side of the screen? This open area is on some devices with a longer aspect ratio. The thing is I can not center the items as they are on invisible panels designed for portrait mode Now if there was a way in landscape mode to add an invisible panel and put these objects on it, I could just center the invisible panel. see what I mean?
and no, if I put everything on a invisible panel for portrait mode, then I could not stretch it out height wise.