Hello!
Due to the security structure of Linux, only so much can be done by way of a GUI. I haven't dug very deeply into it all yet, but it seems as if SOME GUI network support already exists in Thunar, the LL version of Windows Explorer.
With a LOT of work, I suppose Linux Lite could be rewritten to work, more or less, exactly the way Windows does. However, to do so would also open it up to some of the same security issues that all versions of Windows currently suffer from.
Even though Windows does it all through a GUI, permissions issues can make even setting up a Windows network tricky sometimes. That's why Windows came up with the Homegroup concept for Windows 7 and later - to somewhat simplify the process. In spite of this, I've found that homegroups seem to have limitations about just what can be shared, and I have issues here with certain of my PCs connecting properly that, by my own admission, I need to try to resolve.
I've very briefly glanced at the networking section of the LL user manual, and even though I don't run LL machines in a network environment on a continuous basis, I will take a shot at setting a mixed network up using LL to see if the procedures for doing so can't be made simpler. As Linux Lite continues to be enhanced, perhaps simplifying network setup somewhat is something that could be looked into...
73 DE N4RPS
Rob