Plugin - view form in content not working

Installed Subscription version. Enabled plugin.
Plugin button does not appear in the content editor! No instructions on plugin shortcode!
I bought the subscription specifically for this plugin!! It does not work. Please provide a WORKING plugin.

Hello Neil,
I am pleased that the installation of the subscription was successful for you!

Just for your information:
Visforms is used by tens of thousands of users.
All reported errors are fixed promptly and no problems are currently known.
With a few exceptions, all users get along very well with Visforms.
Visforms is a well-documented and user- and developer-friendly component of very high quality (including code quality).

It is true that a Visforms plugin must first be activated before it can be used.

The documentation describes the use of all plugins:
docs.joomla-4.visforms.vi-solutions.de/e...ubscription/plugins/

For the use of the plugin 'Content Plugin - Visforms form' look here:
docs.joomla-4.visforms.vi-solutions.de/e...add-form-to-article/

In particular the following section.
Insert form into article:
docs.joomla-4.visforms.vi-solutions.de/e...rt-form-into-article

In your questions, please refer to what you don't understand about the documentation.
I'll be happy to help you further!

Kind regards, Ingmar