SetWorkDirAt, OpenCodeAt, fix bug there, fill more doc strings

src/backup/todo.txt

@@ -2,21 +2,18 @@
 ! From a user (novice) point of view, how does it look like?
 
 Use session 4
-- ":OpenAt C:/Work"
-- :OpenCodeAt C:/Work
-- :SetWorkDirAt C:/Work or :Set WorkDir "." ? or :Set WorkDir "C:/text_editor"
+- SkipLoadWord
 - Delete file command
 - :Close Fuzzy search exact match doesn't match with Close
 - Maybe search everything window should have a special buffer
 - Setting variables maybe should create and modify config, commit these changes immediately? So user can change keybindings in command window and commit immediately
+- Make the special view hooks also available for modification and registered but maybe under different name or something
 
 - Make a fuzzy command !> grep and fuzzy over it??? (doesn't seem very useful for grep)
 - Make the equivalent of SearchProject but for cmds like !@git grep -n "@>"
 - Add Bool variable
 
-- Initialize all keybindings at the start and refer using global variables?
 - RegisterCommand should_appear_in_listing variable
-- RegisterCommand docs
 - Maybe one list for all variables including the commands etc?
 
 Use session 3: