I know this is a late reply,but maybe you'll see it.
Regarding the synced/shared/global file ignore, there's an imperfect but usable work-around:
You can use #include statements in your .stignore, so you can include another file that contains the global ignore list, then sync that file. You have to set up the .stignore with the include statement for all of your devices/folders, but after that, it's essentially a global ignore list.
Regarding the synced/shared/global file ignore, there's an imperfect but usable work-around:
You can use #include statements in your .stignore, so you can include another file that contains the global ignore list, then sync that file. You have to set up the .stignore with the include statement for all of your devices/folders, but after that, it's essentially a global ignore list.
Hope that helps.