I am using Lyx 2.1.4 on a Windows System. When i need to create a subsection/pragrah i used the standard shortcuts Alt+A 1-5.
For some reason the shortcuts are now disabled (which lyx tells me down in the statusbar) and restarting lyx (as stated in other posts) did not work.
I did not change anything in my preferences lately except adding the hunspell directory.
How can i enable them again?