 
 (defun spacemacs//space-doc-modf-meta-tags-overlays (&optional enable)
   "If ENABLE has non-nil value - modify `org-mode' meta tags
-appearance in the current `org-mode' buffer. Otherwise - disable."
+appearance in the current buffer. Otherwise - disable."
 
   (if enable
+      ;; TODO add more types of tags or meta-line if needed.
       (let* ((invisible-org-meta-tags-list
               `(;; Hide TITLE tag.
                 ("\\([ \t]*\\#\\+TITLE\\:\[ \t]*\\)"

        (delete-overlay overlay)))))

(defun spacemacs//space-doc-modf-org-block-line-face-remap (&optional enable)
  "If ENABLE has non-nil value - hide text in the code block meta lines
in the current buffer. If the blocks have background color text won't be
removed because it makes them look ugly with some themes.
If ENABLE has nil value - revert to the default."

  (if enable


(defun spacemacs//space-doc-set-space-doc-cache (&optional flag)
  "Set `spacemacs--space-doc-cache' to filled
`spacemacs//space-doc-cache' structure."

  (setq spacemacs--space-doc-cache
        (if flag
