--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt*	For Vim version 8.2.  Last change: 2021 Jan 04
+*terminal.txt*	For Vim version 8.2.  Last change: 2021 Feb 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -126,11 +126,28 @@ After opening the terminal window and se
 |TerminalWinOpen| autocommand event is triggered.  This makes it possible to set
 options specifically for the terminal window and buffer.  Example: >
    au TerminalWinOpen * setlocal bufhidden=hide
+This only works properly if the terminal is not hidden.
 
-There is also the |TerminalOpen| event, but this may be triggered for a hidden
-terminal, and the current window and buffer may not be for the new terminal.
+For both hidden and non-hidden terminals this works, both for buffer-local and
+window-local options: >
+   au TerminalWinOpen,BufWinEnter * if &buftype == 'terminal'
+        \ | setlocal bufhidden=hide colorcolumn=123
+        \ | endif
+Note that for a hidden terminal the options are not set until the terminal is
+no longer hidden.
+
+There is also the |TerminalOpen| event.  Keep in mind this may be triggered
+for a hidden terminal, then the current window and buffer are not that of the
+new terminal.
 You need to use <abuf>, which is set to the terminal buffer.  Example: >
-    au TerminalOpen * call setbufvar(+expand('<abuf>'), '&colorcolumn', 123)
+    au TerminalOpen * call setbufvar(expand('<abuf>')->str2nr(),
+	    \ '&termwinscroll', 1000)
+For a window-local option, you need to delay setting the option until the
+terminal window has been created (this only works for a hidden terminal): >
+    au TerminalOpen * exe printf(
+        \    'au BufWinEnter <buffer=%d> ++once setlocal colorcolumn=%d',
+        \       expand('<abuf>')->str2nr(), 123)
+For a non-hidden terminal use |TerminalWinOpen|.
 
 Mouse events (click and drag) are passed to the terminal.  Mouse move events
 are only passed when Vim itself is receiving them.  For a terminal that is
@@ -717,6 +734,8 @@ term_scrape({buf}, {row})				*term_scrap
 		    "attr"	attributes of the cell, use |term_getattr()|
 				to get the individual flags
 		    "width"	cell width: 1 or 2
+		For a double-width cell there is one item, thus the list can
+		be shorter than the width of the terminal.
 
 		Can also be used as a |method|: >
 			GetBufnr()->term_scrape(row)