Tikiwiki requires many settings to enable the WYSIWYG properly.
YAML
preferences:
feature_wysiwyg: y
wysiwyg_wiki_semi_parsed: y
feature_wiki_paragraph_formatting: y
wysiwyg_toolbar: "Undo,Redo,-,Find,Replace,RemoveFormat,-,TextColor,BGColor,Bold,Italic,StrikeThrough,-,Subscript,Superscript,-,tikilink,tikiimage,Link,Unlink / OrderedList,UnorderedList,Outdent,Indent,Blockquote,-,Table,Rule,SpecialChar / Style,FontName,FontSize-,JustifyLeft,JustifyCenter,JustifyRight,JustifyFull,-,Source,ShowBlocks,Templates,FitWindow"