diff --git a/ftplugin/cpp.vim b/ftplugin/cpp.vim
index 3b97ecb..fe9f13e 100644
--- a/ftplugin/cpp.vim
+++ b/ftplugin/cpp.vim
@@ -1 +1,2 @@
 set colorcolumn=80
+set cino=N-s
diff --git a/ftplugin/tex.vim b/ftplugin/tex.vim
new file mode 100644
index 0000000..3b97ecb
--- /dev/null
+++ b/ftplugin/tex.vim
@@ -0,0 +1 @@
+set colorcolumn=80
diff --git a/vimrc b/vimrc
index 3f26bd7..157d1b8 100644
--- a/vimrc
+++ b/vimrc
@@ -41,6 +41,8 @@ nmap <silent> <S-A-Up> :wincmd k<CR>
 nmap <silent> <S-A-Down> :wincmd j<CR>
 nmap <silent> <S-A-Left> :wincmd h<CR>
 nmap <silent> <S-A-Right> :wincmd l<CR>
+nmap <silent> <C-l> :noh<CR>
+nmap <silent> <F6> gg=G<C-o><C-o><CR>
 
 "escape sequence
 :set timeout timeoutlen=100