This is a limitation of the zone a developer of a buddy has just modified the plugin and he can add the links on the TinyMCE. Unfortunately Guthenberg is really unusable in my opinion it breaks the effectiveness of wordpress.
That’s how the developer made the shortcode (example)
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[sc_fs_faq html=”true” headline=”h3″ img=”” question=”Question” img_alt=”” css_class=”” ]réponse lien[/sc_fs_faq]
[sc_fs_faq html=”true” headline=”h3″ img=”” question=”Question 2″ img_alt=”” css_class=”” ]réponse 2.[/sc_fs_faq]
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unfortunately for me I made an update and I can not go back with the modified plugin ??