## Link to GitHub Issue or related Pull Request, if one exists
#345
## Description of change
If IIDX/SDVX/POPN "native touch" option is enabled, show an error
message if user toggles subscreen window.
Those options are meant for users with touch screens, and disables mouse
interactions. Users who like to randomly turn on options often latch on
to this option and get confused when clicks don't register.
## Testing
## Link to GitHub Issue or related Pull Request, if one exists
#0
## Description of change
Combine the two layout options into one
## Testing
- [x] windowed, x4
- [x] windowed, x2
- [x] windowed, x1 with sub
- [x] fs
## Link to GitHub Issue or related Pull Request, if one exists
#618
## Description of change
Add overlay for subscreen.
Add an option for no subscreen window.
Use the same "force redraw subscreen" logic we used in SDVX to fix the
same issue.
Known issues:
* still crashing when running windowed if there is only one monitor
* having only one monitor causes sunscreen overlay to not work
(NumberOfAdaptersInGroup issue?)
## Testing
bicarusandGitHub