Indent/Outdent botton doesn't work in WYSIWYG mode.

[sweetyuria]

Version

"@toast-ui/vue-editor": "^1.1.1"

Test Environment

Chrome
Mac

Current Behavior

// Write example code
      toolbarItems: [
        'heading',
        'bold',
        'italic',
        'divider',
        'hr',
        'quote',
        'divider',
        'image',
        'indent',
        'outdent'
      ],

Expected Behavior

In WYSIWG mode
Use Indent/Outdent button.
It doesn't work.
And could I apply to getHtml()/setHtml() ?
text-indent/padding-left

hahahahahaha
hohohohohoho
blar blar blar blar

==>
hahahahahaha
    hohohohohoho
blar blar blar blar

and getHtml() setHtml()