Disabling split mode view or making edit mode default

<%- if @topic_view.topic.tags.present? %>
<%= t 'js.tagging.tags' %>: <%- @topic_view.topic.tags.each do |t| %> <%= t %> <%- end %>
<% end %>

Silverstripe Version: 4.3.1

Question:

For some of my projects and clients, split mode preview is not applicable - all work is done in edit mode. Is there a way I can disable split mode, or make edit mode the default, so that CMS users are not defaulted to this?

Currently this is happening for some CMS administrators and hindering their editing experience.

I’d like to know this too :).