Close sub-heading in org-mode

Question

Here an org-mode tree

* TEST 
 * SUB1
  * SUB11
   * SUB111
   * SUB112
  * SUB12
 * SUB2

If the tree is partially fold you can have:

* TEST 
 * SUB1
  * SUB11
  * SUB12
 * SUB2

Is there a command for (un)folding SUB1 without unfolding SUB11 (like org-cycle) with tab on SUB1 ? an org-fold-unfold-this-subtree function ?

Thanks

Answer 1

Finally I found what I was searching for:

(define-key org-mode-map (kbd "s-<tab>") 'outline-hide-subtree)

do the trick. (shortcut is on Windows_key+TAB)

If you want to overide the backtab (Shift tab) you can do

(defalias 'org-shifttab 'outline-hide-subtree)