Importing TO galleries issues

Hi,
Great plugin, thanks for develop it.

I am having a little issue. I can’t see the checkbox

import [flickr] content

in Galleries.

It’s working in Pages and posts but not in the galleries.

I try to check the:

Enable for Galleries

in Post Options but still doesn’t work.
This is very important cause my plugin (Vernissage) only allows me to use slideshows in Galleries.

https://ww.wp.xz.cn/plugins/flickr-shortcode-importer/